Arlington Green Home Choice Guidance Manual...1 Arlington Green Home Choice Guidance Manual (This manual provides participation instructions and describes the credits listed in the

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Arlington Green Home Choice Guidance Manual

(This manual provides participation instructions and describes the credits listed in the Green Home Choice Project Scoresheet)

(October, 2017 version)

Instructions for Submitting and Certifying a Green Home Project

The Green Home Choice Program makes it easier for homeowners and builders to carry out a green home building project by providing support, a point-based scoring system and guidance manual, and County-sponsored plan review and inspections toward certification. As a participant in the program, please follow the steps outlined below. At any point in the process, if you have questions or suggestions for the program, please contact the program manager at (703)228-4792. Thank you for your participation! Process Instructions for Green Home Choice Projects Step 1) Review the Green Home Choice (GHC) Program Materials

Download the Guidance Manual, Scoresheet, and Application form and review them. The Guidance Manual is simply an explanation of each of the items found on the Scoresheet. The Scoresheet is a listing of all of the available credits that can be earned within the GHC certification process.

Step 2) Contact and meet with the GHC Program Manager early in the project design process.

Call 703-228-4792 or email [email protected] early in the design phase for a preliminary meeting to discuss your project goals and sustainable design concepts and review the program with the Program Manager. If this is a renovation project, we will meet at the home where the project will occur. If you are a homeowner and have already selected an architect or contractor, it is suggested that they attend this first meeting. A meeting with the project construction manager is required prior to the start of construction.

If the project is a new home, an Energy Rater must be hired early in the design process to provide energy modeling, testing, and either a Home Energy Rating (HERS) score, and/or a ENERGY STAR qualified home certification for the project, depending on what certification level you are seeking. It is suggested that this person be involved in early design meetings for the project. An Energy Rater can also be an extremely helpful resource in renovation projects to make sure that your house is as efficient and safe as possible. Please see the GHC scoresheet for alternate energy compliance paths that involve Energy Raters.

Step 3) Submit a draft Scoresheet and application form to the GHC Program Manager for review and approval/signature prior to submission with the County building permit application.

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The GHC Manager will review the Scoresheet and Application shortly after submittal, provide comments, and the scoresheet will be finalized. The GHC Manager’s signature is required on the GHC application prior to submitting a building permit application. Please make sure that the GHC Program Manager also receives an electronic copy of your GHC Scoresheet.

The GHC Scoresheet and application will be submitted electronically online with the building permit plans. The online system will ask you if you are doing a green project, and if you answer “Yes”, it will ask you to attach your application and scoresheet to your building permit application

Please ask the GHC Program Manager for a Green Home Choice yard sign for your project or for the logo to add to your own sign. You receive a point on the Scoresheet for doing this. If you are a building professional working on the project, you can request that your name be added to the Green Home Choice Participating Professionals list at this point in the process. Company names will be removed if the project does not complete certification.

Step 4) Request and complete the two necessary site visits with the Program Manager and create a Homeowner’s Manual.

Once construction is underway, your green home project will be visited by the Green Home Choice Program Manager at two key points in the process: just before drywall goes up and right before or after your final building inspection. Please note that official County Code-based insulation and final inspections by the Building Inspectors are required in addition to your Green Home Choice site visits. For renovation projects, another site visit or two may be desired to go over final plans for insulation and air sealing and for reviewing air sealing work just prior to insulation.

Two or three days prior to your two “green-specific” building inspections (insulation and final), please a call or email the GHC Program Manager at 703-228-4792 [email protected] to let her know when you would like the visits to be scheduled.

The Homeowner’s Manual should be completed at the time of final building inspection or if not, shortly thereafter. The manual must include the original, signed GHC Project Scoresheet with the Program Manager’s initials from both site visits. The manual must also display all of the “Product Information” and other noted items in the “Required Documentation” column of the GHC Project Scoresheet along with a bulleted list of all of the green features of the home. Please see the GHC Guidance Manual for a detailed list of items that may be included in your Homeowner’s Manual.

Step 5) Complete the certification process with the Program Manager and receive your certificate.

As noted above, the GHC Program Manager must do a final review of the home and the Homeowner’s Manual to complete the certification process. Once the final site visit has been conducted and enough points have been demonstrated to complete certification and the Program Manager is satisfied with the manual, she will do a final sign-off of the project certification. You will also be invited to the annual GHC recognition ceremony with the County Board and will receive your official GHC certificate at that time. This generally occurs early in calendar year following the completion of the project.

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The following is a list of materials that should be considered when creating the Homeowner’s Manual:

Green Home Choice Program Homeowner Manual Checklist

Required Items

Please check box if applicable and included in manual

One- two Page Summary of Green House Features (this should include text and could use a bullet list of green features

Green Home Choice Scoresheet (signed and initialed copy) Documentation Required if Utilized in Project Operational Instructions, Product Information, Warranty information, Manuals, and Efficiency Data for:

Heat Pump – (Plus Vendor receipt/contract with efficiency rating) Furnace- (Plus Vendor receipt/contract with AFUE rating -% efficiency)

Air Conditioning Equipment – (Plus Vendor receipt/contract with SEER rating(

Variable Speed Blower for HVAC Equipment- (Plus Vendor Contract or Product Information)

Ventilation Systems High Efficiency Direct Vent Fireplace Appliances- refrigerator, dishwasher, range, ovens, clothes washer (Plus Energy Star Label or equivalency data)

Water Heater (Plus energy efficiency information) Kitchen and Bath Exhaust Fans ( Plus Information with Energy Star label)

Dehumidification systems Window Specifications- one sticker from each type of window or copy of order form from vendor showing efficiency numbers (SHGC, U-Factor). Also include window and glazing warranties.

Skylight stickers with efficiency numbers (SHGC, U-Factor) Door Specifications – sticker from door showing insulation value of door and door glass specifications (SHGC and U-Factor)

Roofing warranty information from roofing packaging Solar or geothermal system product information plus vendor contracts Solar-ready home letter from solar company Other Printed Material Documentation Necessary for Certification (if applicable)

Copy of Virginia Responsible Land Disturber’s Certificate for silt fencing

Receipt from Tree Company for root pruning, fertilization, etc… Letter from Landscaper describing drought tolerant landscaping Receipt from Tree Company about any stump grinding Receipt from Tree Company about milling of on-site removed trees

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Letter from Arborist stating that no native trees have been removed and that critical root zones have been protected.

Copy of Certificate for NWF Wildlife Habitat Insulation Specifications/Contract from Insulation Vendor showing R-Value and products used

Copies of 3rd Party Blower Door or duct testing results if not doing full ENERGY STAR certification

Manual J Calculations for HVAC Equipment Manual D Analysis for HVAC Equipment Proper Refrigerant Charge Documentation from HVAC technician Airflow measure and balancing of duct run documentation from HVAC technician

Copy of HERS rater report for grade of insulation if not doing full ENERGY STAR certification and using batt insulation.

Window Specifications- one sticker from each type of window or copy of order form from vendor showing efficiency numbers (SHGC, U-Factor)

Skylight stickers with efficiency numbers (SHGC, U-Factor) Door Specifications – sticker from door showing insulation value of door and door glass specifications (SHGC and U-Factor)

Faucets (bath and kitchen)- Cut Sheets from Vendors, other flow rate information, or WaterSense label

Indoor Lighting- Information with Energy Star label Outdoor Lighting (motion sensored) Showerhead –Cut sheet from vendor, other flow rate information, or WaterSense label

Packaging from faucet aerators if used Plumbing drawings to display compact plumbing system design Non-toxic lumber mold inhibitor product information Non-toxic lumber pest inhibitor product information Paperless drywall product information Report from radon testing Deconstruction report from 3rd party vendor Waste hauling receipts showing which items have been recycled both in deconstruction and new construction phases.

Material Donation Receipts Low VOC cabinetry or plywood product information Low VOC carpeting product information FSC certified lumber or cabinetry product information Recycled content product information Modular housing specifications SIPs contractor specifications Copies of any other green certifications listed in bonus section – ENERGY STAR, Indoor Air Plus, LEED Homes, Passive House, Earthcraft, etc….

Photo Documentation (Some are non-Inspection Items):

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NOTE: All air sealing measures utilized by applicant would be good to photo in case some question arises at the certification stage about whether it was completed and for general knowledge of current or future homeowners.

Other Recommended Photos: Gravel Base Beneath Slab Vapor Barrier Beneath Slab (Poly) Sill Seal installation Slab Insulation Exterior Drain Tile Correct taping of housewrap, including around windows and doors. Drainage board on foundation walls Exterior insulation on foundation walls Roof Ice Dam Protection Waterproof membrane used in bathrooms Return and Supply Duct protection during construction Use of mastic on ductwork and specification on vendor contract Subfloor products after insulation to display that they are formaldehyde free

Insulation products after insulation to display that they are formaldehyde free

Engineered wood products after installation (e.g. LVLs, trusses, etc…) Physical Evidence of Low VOC Products: If possible save cans of Low or no VOC Paints, sealants, adhesives, and floor finishes. If subcontractor is not leaving evidence of floor finishes, try to photograph the container prior to completion of the job.

Green Home Choice Scoresheet Credit Descriptions

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Please note that all items shown in bold and highlighted in green are required in order to participate in this program. The numbers in this document correspond to the numbers in the GHC Scoresheet. Credit: The sources for much of the content of this program and manual is the Earthcraft House Virginia program, the Southface Institute, and the Department of Energy’s Building Solutions Center website.

Item Number Description Required or Voluntary

A. SITE AND STORMWATER PROTECTION Erosion and Sediment Control REQUIRED: [1] Properly install silt fencing (does not apply to interior only renovations)

Silt fencing, when properly installed (see below) on the perimeter of disturbed areas, can intercept and detain small amounts of sediment from non-vegetated areas during rain events and reduce the velocity of storm water flow. Erosion and sediment control protections, including silt fencing, are required for most new homes through the County’s Erosion and Sediment Control Code when land disturbance is greater than 2,500 square feet. The Green Home Choice program also requires this for projects that disturb less than 2,500 square feet, which would generally apply to additions, but not to interior only renovations.

See the following website for more information: http://www.dcr.virginia.gov/soil-and-water/npsbmp

Required for all projects with land disturbance (All additions and new homes)

[2] Cover disturbed areas Apply mulch or straw on top of all disturbed areas on the site until Required for all

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(does not apply to interior only renovations)

new groundcover or other vegetation can be planted. Erosion and sediment control protections, including disturbed land stabilization, are required for most new homes through the County’s Erosion and Sediment Control Code when land disturbance is greater than 2,500 square feet. The Green Home Choice program also requires this for projects that disturb less than 2,500 square feet, which would generally apply to additions, but not to interior only renovations.

projects with land disturbance (All additions and new homes)

[3] Protect on-site storm water inlets, if applicable (does not apply to interior only renovations)

Storm water or storm drain inlets direct storm water directly to streams and other waterbodies without filtration. Therefore, it is critical to protect on-site storm water inlets with filter socks, strawbales, or other devices as approved by County Staff. Erosion and sediment control protections, including storm drain inlet protection, are required for most new homes through the County’s Erosion and Sediment Control Code when land disturbance is greater than 2,500 square feet. The Green Home Choice program also requires this for projects that disturb less than 2,500 square feet, which would generally apply to additions, but not to interior renovations. See the following website for more information: http://www.dcr.virginia.gov/soil_and_water

Required for all new homes and addition projects with land disturbance AND on-site storm water inlets

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[4] Install permanent controls for steep slopes

Permanent erosion and sediment control measures for steep slopes include planting native groundcovers or other native plantings and the construction of low retaining walls or terraced walls, not to exceed three feet in height. If mature trees exist on the steep slope area, terracing/retaining walls are not recommended due to the disturbance of tree roots. Native groundcovers would be appropriate in those situations.

Voluntary

[5] Mark limits of clearing and grading on site plan

Mark the limits of land disturbance (clearing and grading) on the submitted site plan and stake this area out on site. This is to make sure that anyone performing land disturbance is aware of what is planned and disturb as little area as possible. The perimeter of this area can also be marked by silt or super silt fencing.

Voluntary

Tree Preservation, Enhancement, and Landscaping [6] Remove no mature native trees or disturb soil within critical root zone

Provide evidence that no mature native trees have been removed and that no soil has been disturbed within the critical root zone of native trees that will remain on the site. A certified arborist should verify that any trees that are to be removed are not native and that the critical root zone of trees to remain will be protected.

Voluntary

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[7] Install tree protection fencing

Have a tree company install tree protection fencing per the landscaping plan, if applicable. See recommended detail below:

Voluntary

[8] Root prune and fertilize all trees

Root pruning and fertilization, per the instructions of a certified arborist, must be performed on all trees within 15 feet of areas to be disturbed.

Voluntary

[9] Plant new native trees One point may be earned for each native tree, up to 2 planted on the site. A list of appropriate native trees may be found at http://www.nps.gov/plants/pubs/Chesapeake/toc.htm

Voluntary

[10] Plant new native shrubs

One point may be earned for each set of 2 new native shrubs planted on the site, up to two points (4 shrubs). A list of appropriate native shrubs may be found at http://www.nps.gov/plants/pubs/Chesapeake/toc.htm

Voluntary

[11] Have lot certified as a National Wildlife Foundation wildlife habitat

The site shall have a wildlife habitat area that is approved and certified by the National Wildlife Federation (NWF). For more information on the NWF program, see: http://www.nwf.org/gardenforwildlife/certify.cfm?campaignid=WH09HTOP

Voluntary

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Storm water Management [12] Install storm water retention controls - raingardens, planters, and infiltration trenches

This credit is earned if drainage from impervious areas is directed to an engineered raingarden, planter or infiltration trench that accommodates at least 0.5 inches of rainfall from the contributing areas. This credit does not apply to projects that are operating under a Land Disturbance Activity Permit. For more information on best management practices please see: http://topics.arlingtonva.us/building/stormwater-management-ordinance/

Voluntary

[13] Foundation drains and downspouts discharge to daylight

Water moved away from the foundation through drains and from downspouts must be discharged on the site towards pervious areas and not towards driveways, sidewalks, streets, or storm sewers.

Voluntary

[14] Install rainwater harvest system

Rain barrels, cisterns, or other approved systems may be used to capture rainwater on-site. A larger number of points may be rewarded for up to 150 gallons.

Voluntary

[15] Use rainwater for toilet flushing

Reuse rainwater collected outdoors for flushing indoor toilets. Building permits/Code staff must approve the design of such systems. More points may be rewarded for up to two toilets.

Voluntary

[16] Maintain lot permeability

Do not cover the site with more than 50% impervious surfaces, including buildings, driveways, sidewalks, patios, or any surface that does not allow the infiltration of rainwater. A larger number of points may be awarded for up to 70% lot perviousness.

Voluntary

[17] Use permeable paving materials (at least 50%)

A minimum of 50% of all paved or hardscaped areas on the site, including driveways, sidewalks, and patios, shall be constructed of permeable or semi-permeable materials that allow for the infiltration of water. A porous subbase depth of at least 6 inches is required. This may include gravel, crushed stone, paving stones with voids, permeable concrete, and other approved designs. For driveways, the design and materials must prevent vehicles from compacting the permeable paving material. This area may also be included in the calculated area for pervious cover in credit [16].

Voluntary

[18] Utilize alternative driveway design

Install a driveway that reduces impervious cover by at least 20% over a standard rectangular driveway, such as two strip or “carriage style” driveways and other designs as approved by the Green Home Choice Program Manager

Voluntary

[19] No Driveway

No driveway is constructed on site. Voluntary

[20] No Garage

No garage is constructed on site. Voluntary

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[21] Create a vegetated roof

Install an engineered vegetated roof system for a minimum of 25% of the roof area. A larger number of points may be awarded for up to 100% of roof area. (This area may also be included in the calculated area for pervious cover in credit [16]).

Voluntary

B. ENERGY EFFICIENT BUILDING ENVELOPE AND SYSTEMS REQUIRED:

[22] NEW HOMES- Certified and Silver Levels

To achieve Green Home Choice (GHC) certification at the Certified and Silver Levels, home builders are no longer required to have the homes ENERGY STAR qualified to meet the energy requirements within this scoresheet. However, the homes must still be rated with the Residential Energy Services Network (RESNET) Home Energy Rating System (HERS) Index and achieve a score of 65 or less to earn the GHC Certified Level and 60 or less to earn the GHC Silver Level. A RESNET certified Home Energy Rater must be employed early in the design process to begin developing this model and the accompanying building diagnostic testing must take place during the construction for ducts and after the construction is completed, for building tightness. For more information on the HERS Index and to find HERS Raters see: http://www.resnet.us/hers-index

Required ONLY for new homes

[23] NEW HOMES- Gold and Platinum Levels

To achieve Gold and Platinum level certifications in Green Home Choice, new home builders are also required to achieve one of the following certifications:

A. ENERGY STAR Qualified Home (current program version) (100 points)

B. Passive House Institute U.S. (PHIUS) (120 points) C. DOE Zero Energy Ready Home (120 points) D. LEED for Homes (Silver Level or Higher only) (100

points) E. Earthcraft House Virginia (Platinum Level only) (100

points) For any of these programs, the applicant must supply the certificate plus the certification report or final scoresheet. For more information on ENERGY STAR Qualified Homes, see: http://www.energystar.gov/index.cfm?c=new_homes.hm_index For more information on DOE Zero Energy Ready Homes see: http://energy.gov/eere/buildings/zero-energy-ready-home For more information on LEED for Homes see: http://www.usgbc.org/leed/rating-systems/homes

Required ONLY for new homes

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For more information on Earthcraft House see: http://www.earthcraftvirginia.org/builders/programs/earthcraft-house/

[24] EXISTING HOMES renovations and additions

Builders of additions or renovations are required to follow one of these paths to earn the minimum required 75 points in this section of the scoresheet.

A. ENERGY STAR Qualified Home (current version)- Those doing home renovations with significant energy retrofits to the existing structure and implementing energy efficiency features to the new portion of the structure, may be eligible to become ENERGY STAR qualified. Projects receiving this certification are eligible to earn 100 points in this section of the scoresheet. For more information see: http://www.energystar.gov/index.cfm?c=new_homes.hm_index

B. HOME PERFORMANCE WITH ENERGY STAR –

Those doing home renovations with modest energy retrofits and/or additions, may be eligible for certification within the HOME PERFORMANCE WITH ENERGY STAR program. A projected energy efficiency improvement of 20% is required for this certification and a minimum of 70 points will be awarded for this efficiency improvement. Additional points may be awarded for greater percentages of efficiency improvement, up to a maximum of 80 points. For more information, see: http://www.energystar.gov/index.cfm?fuseaction=hpwes_profiles.showSplash

C. EARTHCRAFT HOUSE VIRGINIA Renovation

–This program can be utilized for any home renovation or addition process. Projects receiving this certification are eligible to earn 85 points in this section of the scoresheet. For more information, see: http://www.earthcraftvirginia.org/builders/programs/earthcraft-renovation/

D. HOME ENERGY RATING SYSTEM (HERS) INDEX SCORE – Projects that earn a HERS Index Score of 70 or less are eligible to earn this credit. This energy modeling system designed by the Residential Energy System Network (RESNET) can be used to meet the energy section of this scoresheet. A RESNET certified Home Energy Rater must be

One of these 4 paths is required

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employed early in the design process to begin developing this model and the accompanying building diagnostic testing after the construction is completed. A combustion safety test is also required at the completion of the construction process if there will be any combustion appliances in the completed project that will not be closed combustion direct vented or power vented units, for the safety of the occupants. Projects that include an energy recovery ventilator (ERV) will be exempt from this requirement. A minimum HERS Index of 70 must be achieved to earn this credit. Projects achieving a HERS Index of 70 are eligible to receive 70 points in this section of the scoresheet, while projects earning a HERS Index of less than 70 are eligible to receive additional points, up to a maximum of 80 points. For more information on the HERS Index and to find HERS Raters see: http://www.resnet.us/hers-index

E. PRESCRIPTIVE APPROACH WITH

COMBUSTION SAFETY TESTING- Projects that choose this path must earn a minimum of 70 points in the Energy Efficient Building Envelope and Systems section. With this approach, it is recommended that a third party energy professional perform an energy assessment early in the project design phase. A blower test is also recommended during the initial project planning stages, but is not required. A combustion safety test is required at the completion of the construction process if there will be any combustion appliances in the completed project that will not be closed combustion direct vented or power vented units, for the safety of the occupants. A blower door test is also highly recommended to insure that enough fresh air will be provided to the occupants after the home has been tightened during the construction process. Projects that include an energy recovery ventilator (ERV) will be exempt from the combustion safety testing requirement and a blower door test will not be necessary.

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The initial energy analysis is designed to give the project team ideas about how to improve the building envelope. The testing is required to ensure that the house will have adequate ventilation at the end of the renovation process. These inspections and tests should be conducted by a BPI or RESNET certified individual. A maximum of 85 points may be earned in this section of the scoresheet under this option.

These certified individuals can be found at: http://www.bpi.org/tools_locator.aspx?associateTypeID=CTR or at: http://www.resnet.us/trade/find-raters-auditors

Air Sealing Measures [25] Building envelope air leakage (blower door) test

A third party energy rater must certify that the house has a maximum air exchange of 3 ACH50 using standard blower door testing protocol set forth by ASTM for house pressurization testing. The builder must submit verification of third party testing upon completion. Certified energy raters can be found at: http://www.bpi.org/tools_locator.aspx?associateTypeID=CTR or at: http://www.resnet.us/trade/find-raters-auditors

Source: Earthcraft Virginia

Voluntary for renovations only

The following details have been sealed as part of a thorough air sealing package. Penetrations through the following locations should be sealed:

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[26] Top and bottom plate Seal all holes in the top and bottom plate for plumbing, wiring, ductwork, and other purposes connecting conditioned and unconditioned (and exterior) areas. Openings shall be sealed with an appropriate sealant. Penetrations for flues and other heat-producing items shall be sealed with non-combustible sheet materials and high temperature-resistant sealant.


Voluntary

[27] Foundations and exterior wall assemblies (including sheathing and drywall)

Seal penetrations and joints in and between the foundation and exterior wall assemblies with blocking material and other appropriate sealants. In sheathing, seal penetrations created by items such as electric outlets, water spigots, other plumbing, condensate lines, light fixtures, and electrical boxes, for example In addition, any penetrations from plumbing or condensation lines, and electrical outlets.

Voluntary

[28] Insulated Ceilings All penetrations through insulated ceilings, such as those created by HVAC boots, bathroom fans, can lights and other light fixtures, security and audio speakers shall be sealed with an appropriate sealant. Penetrations for flues and other heat producing items shall be sealed with noncombustible materials and high temperature resistant sealant.

Voluntary

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Seal duct boot to drywall

Seal can light in insulated ceiling


[29] Band and rim joists between all floors

Seal all penetrations through the band and rim joists between conditioned and exterior spaces and between conditioned space and garages. This includes all holes drilled for ductwork and HVAC lines, pipes, exhaust fan ductwork, and electrical lines.


Voluntary

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[30] Insulated subfloors All penetrations through insulated floor systems that are over unconditioned areas (such as basements, vented crawlspaces, and garages) must be sealed including duct, electrical, and plumbing penetrations.


Voluntary

[31] Walls and ceilings in attached garages

All penetrations (including those associated with light fixtures, switches, electrical boxes, and pipes) through garage wall or ceiling drywall on walls that are attached to the home, must be sealed with an appropriate sealant. This is done to prevent car exhaust and fumes from other substances that might be stored in the garage from entering the home.

Voluntary

The following details have been sealed as part of a thorough air sealing package. Penetrations around the following items should be sealed: [32] Bath tub and shower drain

Plumbing penetrations through the subfloor for tub and shower drain lines shall be sealed with solid sheet material and an appropriate air impermeable sealant. Plumbing penetrations in slab floors should also be sealed.

Voluntary

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[33] HVAC supply and return boots sealed to subfloor or drywall on floors, walls, and ceilings.

Seal all HVAC supply and return boots to subfloor and wall or ceiling drywall with caulk or other appropriate sealant.


Voluntary

[34] Window and door rough openings

The space between the framing for window or door rough openings and the installed units shall be sealed with an appropriate low or non-expanding sealant, or closed cell foam backer rod with a suitable sealant. Thresholds for exterior doors shall be sealed to

Voluntary

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the subfloor.

Seal the area shown in red. Source: Earthcraft Virginia

[35] All drywall penetrations in common walls between attached homes (Townhouses or Duplexes)

For all common walls between two dwelling units such as duplexes and townhomes, seal all penetrations through the top and bottom plate, and all drywall penetrations where permissible by fire code.

Voluntary

[36] Exhaust fans at drywall.

Seal around all exhaust fan units to drywall with an appropriate sealant.

Voluntary

[37] All Chases Seal and insulate framed spaces that connect conditioned areas to unconditioned areas above and below the chase (unconditioned basements, vented crawl spaces, and attics) with sheet material and sealant These include chases for plumbing, duct work, chimneys, and flues. For chases with high temperature heat sources, non-combustible sheet materials, such as sheet metal and high temperature caulk, shall be used.

Voluntary

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[38] Knee wall Doors Seal the rough opening between the framing for knee wall doors and the knee wall doors with a low or non-expanding spray foam product or closed cell backer rod and a similar product. This is similar to the process for sealing around window and door rough openings.


Voluntary

[39] Attic access rough openings (pull-down

Seal the space between the framing and rough opening for attic access pull-down doors and the doors with a low or non-expanding

Voluntary

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stairs and scuttle holes)

spray foam product or closed cell backer rod and a similar product. This is similar to the process for sealing around window and door rough openings.


[40] All electrical boxes on exterior walls

Seal gap between electrical junction boxes and the rough opening in the drywall with caulk or an appropriate sealant. If air sealed boxes are not utilized, use an appropriate air barrier behind box.

Voluntary

The following details have been sealed as part of a thorough air sealing package. Seams and gaps in the following areas should be sealed: [41] Band joist sheathing Seal all seams in band joist sheathing separating conditioned and

unconditioned spaces. Band joists shall be sealed to top plate, subfloor and at butt joints, or at exterior sheathing.

Voluntary

[42] Exterior wall sheathing

Seal all gaps ≥⅛” in exterior sheathing, such as seams between abutting sheets, using an appropriate sealant or tape.

Voluntary

[43] Between SIPs and modular construction

Seal all seams between structurally insulated panels (SIPs) with appropriate sealant on the interior and exterior of the building

Voluntary

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panels

envelope.

[44] Joints between modular home modules or panelized construction panels

Seal marriage joints between modular home modules and panels that connect conditioned space to the exterior with gasket, sealant and tape per manufacturer specifications.

Voluntary

[45] House wrap at plates, seams, and openings

A house wrap shall be applied to exterior walls according to manufacturer’s specifications, unless an integrated house wrap product is utilized. The house wrap must be installed in as continuous a manner as possible, and be sealed with house wrap tape, caulk or other sealant to the framing at top plates, all overlapped seams, rough openings for windows and doors, all subcontractor-made penetrations, band joist areas, and at the foundation wall below the bottom plate.


Voluntary

The following details have been sealed as part of a thorough air sealing package. Air barriers have been utilized in the following locations: [46] Continuous air barrier on entire exterior walls of home

A variety of materials are being used to create a continuous air barrier on the exterior walls of homes. All seams and penetrations in these materials (such as rigid insulation board or other sheathing products) must be taped or sealed in an appropriate manner. House wrap materials do not comply.

Voluntary

[47] Behind bath tub and showers on all insulated walls.

On insulated walls, install an interior rigid material over loose insulation or spray applied air barrier behind tubs and showers before installing tub and shower assemblies.

Voluntary

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[48] At attic knee walls and skylight shafts

A rigid material shall be applied to the knee wall framing on the attic side of the knee wall. An appropriate sealant should be used to seal all seams. This can also be used at skylight shaft locations.


Voluntary

[49] At joist cavities underneath attic knee walls

A rigid material shall be applied down between the flat ceiling joists to seal the floor joist cavities and block airflow at this location. Seams in this blocking should also be sealed.

Voluntary

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[50] At chases in contact with the building envelope (including fireplace)

Apply a rigid material over loose insulation and to the interior of all chases where they meet the building envelope. A spray applied air barrier on the exterior sheathing may also acceptable in certain situations. All rigid air barriers should be sealed with an appropriate sealant (Code may require that some air barriers and sealants be fire rated, especially in chimney areas).


Voluntary

[51] Along staircases on insulated walls

A rigid air barrier should be installed to the interior of all staircase walls adjoining unconditioned spaces (e.g., exterior walls, garages or unconditioned attics). A spray applied air barrier is also acceptable in this situation. Seal seams of rigid air barrier and penetrations through air barrier using an appropriate sealant. An air

Voluntary

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barrier should also be installed in areas under enclosed landings and bottom stairs.

[52] Along porch roofs Apply a rigid blocking material at the vertical connection between the conditioned interior of the home and the porch roof area and seal seams with an appropriate sealant.

Voluntary

[53] Wherever ceiling heights change (dropped ceiling, soffit, or tray ceilings)

Apply a rigid blocking material to ceiling stud cavities where heights change, to soffits, and to tray ceilings between conditioned areas and an unconditioned attic using appropriate sealant to seal seams. Note that a ceiling height change of 18 inches or greater is treated like an attic knee wall. For more information and diagrams, see: https://basc.pnnl.gov/resource-guides/dropped-ceilingsoffit-below-unconditioned-attic#quicktabs-guides=5

Source: Earthcraft Virginia and Building America Solutions Center

Voluntary

[54] Band joists between all floors, including crawl spaces and garages

All band joist areas between conditioned floors shall be sealed with a rigid blocking material and seams sealed with an appropriate sealant. These areas can also be sealed with a spray applied air barrier applied directly to the band. This applies to band joist areas between crawl spaces and conditioned floor space above and between garages and conditioned space.

Voluntary

26


[55] In vaulted ceilings

If fiberglass batt or loose-fill insulation is used in vaulted ceilings, baffles shall be installed at both the high and low ends of the rafters. Vaulted ceilings which are insulated with foam or dense-pack cellulose, do not require baffling, and are eligible for these points. In these instances, blocking is also recommended at the roof edge. For more information and diagrams, see: https://basc.pnnl.gov/search/Cathedral%20Ceiling

Voluntary

[56] In cantilevered floors sealed and blocked above supporting walls

For floors with conditioned area over unconditioned open areas, the floor joist cavity shall be sealed with a rigid material and sealant above the supporting wall.


Voluntary

Weather stripping or gaskets installed in the following locations: [57] All exterior doors Ensure that all exterior door openings are fully gasketed to prevent

air leakage.

Voluntary

[58] Doors to unconditioned spaces

Ensure that all openings that lead to unconditioned spaces such as garages, are fully gasketed.

Voluntary

[59] Attic pull-down and knee wall doors

Pull-down attic stairs, scuttle holes, and knee wall doors that are located between conditioned and unconditioned space, shall be weather-stripped or gasketed and insulated to provide an airtight seal. Knee wall doors should also be latched.

Voluntary

27



Additional Air Sealing Measures Taken: [60] Bottom plate sealed to subfloor or foundation

Seal the bottom plate of all exterior walls and walls adjacent to unconditioned spaces on all levels of the structure to the subfloor or foundation with a suitable sealant. This includes the bottom plate and subfloor connections in the garage.


Voluntary

[61] Drywall sealed to bottom plate

Drywall adhesive, gaskets or other appropriate sealant shall be applied to the inner face of bottom plate of insulated walls prior to installation of the drywall.

Voluntary

28


l. Source: Earthcraft Virginia

[62] Ceiling drywall sealed to top plate

Drywall shall be sealed to top plate at interfaces between unconditioned spaces and all walls (locations such as attics, attic knee walls, and garages). An appropriate sealant or gasket should be used. Sealant may be applied from attic side to joints between drywall and top plate.


Voluntary

[63] Whole house fans sealed with gasket and insulated cover

A cover shall be constructed to air seal and insulate any whole house fan when it is not in use. This cover shall be air-sealed to the framing assembly with proper gaskets or weather stripping and should be insulated to a minimum of R-5.

Voluntary

[64] All recessed can lights ICAT rated

Recessed can light fixtures in insulated ceilings with an unconditioned area above must be air-tight and insulation contact (ICAT) rated, and must be fully gasketed and sealed to the drywall. Recessed can lights should also be insulated to a minimum of R-10

Voluntary

29


to minimize condensation potential.


[65] Crawl space sealed and conditioned

Crawl space walls shall be airtight and all penetrations sealed with no vents. Access doors must also be weather stripped and insulated and all vents sealed. Install continuous vapor barrier (minimum 6 millimeter) over all exposed earth. Overlap all joints a minimum of 6 inches. Seal joints with appropriate sealant and extend and seal edges of vapor barrier at least 6 inches up the stem wall and piers. Conditioning could include continuous mechanical exhaust ventilation, a conditioned air supply and return (1cfm/50 s.f.), or a dehumidification system. For more information, visit www.crawlspaces.org


Voluntary

30


Spray applied insulation used in the following locations: [66] At all rim and band joists

Use an air impermeable spray applied insulation at all rim and band joists to the full depth of the joist.

Voluntary

[67] On all walls adjacent to unconditioned spaces

Use an air impermeable spray applied insulation in all wall cavities adjacent to unconditioned spaces to the full depth of the stud.

Voluntary

[68] On attic floor Use a spray applied insulation material on the attic floor at a depth that is equal to a minimum of R10. Follow all manufacturers’ instructions on applying insulation in contact with various items that might penetrate the attic floor, such as can lights, flues, wires, pipes, etc…

Voluntary

Insulation General Insulation Practices: [69] Batt insulation installation quality at least Grade II based on RESNET standard

All insulation must be installed per the manufacturer’s recommendations to achieve the quality grade specified by criteria set forth by RESNET. Grade II insulation has moderate to frequent defects (i.e. gaps around wiring, electrical outlets, plumbing and rounded edges). Gaps or spaces clear through the insulation amounting to up to 2% or total surface area covered by the insulation, or incomplete fill or compression of up to 30% of intended thickness, to up to 10% of the area. Grade I insulation fills each cavity side to side and top to bottom. No substantial gaps or voids exist around obstructions (i.e. blocking or bridging). Split and/or fitted tightly around wiring and other services. No exterior sheathing should is visible through gaps in the material, minimal compression. Incomplete fill or compression of up to 30% of intended thickness is less than 2% of the surface area. Installation grade must be certified by a HERs rater. More points are awarded for Grade I than Grade II and no points are awarded for Grade III. See http://www.resnet.us/blog/new-how-to-video-series-on-installing-batt-insulation-to-meet-resnets-grade-i-criteria/ for more information.

Voluntary

[70] Cantilevered floors over exterior spaces insulated to R30

Insulate all cantilevered floors adjacent to unconditioned areas to R-30 or greater. Blocking between joists is required when joists cross from unconditioned spaces to conditioned spaces.

Voluntary

31



[71] Fireplace chases on insulated walls (R15)

Exterior fireplace chases that connect to conditioned space should be insulated to a minimum of R15. Insulation must be in continuous contact with exterior walls and ceiling above the fireplace. Insulation shall be located no closer than 1-inch to the flue pipe, or according to local code.


Voluntary

Slabs, Basements, and Crawlspaces [72] Continuous slab insulation (R10)

R-10 or greater full under slab insulation may be utilized per manufacturer’s specifications to keep the slab warm.

Voluntary

32


Source: ornl.gov

[73] Basement wall continuous insulation (R10)

Basement walls shall have continuous insulation coverage from floor to ceiling equal to or greater than R10. This can be achieved with a rigid insulated sheathing (foam board or rock wool board), spray applied products or fiberglass rolled products. If studs or furring strips are used, they must be applied on top of the continuous insulation to remove opportunities for thermal bridging.

Voluntary

[74] Basement wall (R15) cavity insulation

Basement walls have R15 cavity insulation with stud framing in between.

Voluntary

[75] Framed floor over enclosed unconditioned crawl space (R22)

Framed floors over unconditioned areas shall have insulation within the joist cavity and a rigid continuous insulation attached to the underside of the floor joists. Cavity insulation shall be in direct contact with subfloor. Framed floors must only be insulated if the crawlspace walls below are not fully insulated.

Voluntary

33



[76] Crawl space walls (R10) continuous insulation

Walls shall be insulated to R-10 continuous (with rigid foam board or spray applied insulation) or greater. Insulation shall be permanently attached to crawlspace walls to within 4 inches of the foundation wall. Provide a 4 inch inspection strip immediately below the floor joists to allow inspection for termite prevention. If walls are insulated and sealed, access doors must also be insulated and all vents sealed to create a semi-conditioned crawl space. Do not use paper faced batt in crawl spaces.


Voluntary

Exterior wall stud cavities insulated to: [77] R19 or higher

Any type of Code approved insulation may be used in the stud cavity to create an R-value of 19 or higher. More points are awarded for higher levels of insulation up to R30.

Voluntary

Rigid continuous insulation on outside of exterior walls or insulated sheathing:

[78] R(5) or greater

A continuous insulation issued on the outside of all exterior walls with an R-value equivalent to R5 or greater per manufacturers’ instructions. More points are awarded for higher levels of insulation up to R10.

Voluntary

34


Band joist insulated to: [79] R19 or higher

Any type of Code approved insulation may be used in the band joist area to create an R-value of 19 or higher.

Voluntary

[80] Insulated headers

All headers within walls that separate conditioned and unconditioned space, are insulated to a minimum of R-3.


Voluntary

[81] Insulated corners Two stud corners or “California Corners” on walls separating conditioned and unconditioned space are insulated to a minimum of R-6 with the insulation continuous to the exterior wall. Drywall clips may be necessary. For more information see: https://basc.pnnl.gov/resource-guides/insulatedcorners#quicktabs-guides=0

Voluntary

35



[82] ICF, SIP, or AAC (R19 or higher) for walls

Insulated concrete forms (ICF), structural insulated panels (SIP), or (AAC) aerated autoclaved concrete block are used for all exterior wall construction and must have an R-value of 19 or higher. Any of these building wall types must be installed according to manufacturers’ specifications and must meet State of Virginia guidelines for termite protection for ground contact insulation.

Voluntary

Attics and Rooflines [83] Unvented cathedral ceilings and rooflines of unvented attics (R30) with (R15) impermeable insulation

Unvented roof assemblies, such as conditioned attics and unvented cathedral ceilings, are created by eliminating ventilation openings (gable, soffit, and ridge) and moving the insulation and air control boundaries to the plane of the roof deck and either above or below roof sheathing. In either situation, the roof shall be insulated to R-30 or greater, including an air impermeable layer of insulation contiguous to the roof deck of a minimum of R-15. Examples of an air impermeable insulation are open and closed cell spray applied products. Any combustion appliances located in an unvented attic must be direct vent or sealed combustion. A conditioned air supply may also be necessary in unvented attic spaces. Applying blocking at the roof edge prior to applying a spray applied insulation is also recommended. See the following for more information: https://basc.pnnl.gov/resource-guides/unvented-attic-insulation#quicktabs-guides=1

Voluntary

36


Source: U.S. DOE Building America Solutions Center

[84] SIP for complete roof (R40) /unvented attic

Utilize a structural insulated panel (SIP) form for the entire roof construction with an R-value of 40 or higher. An unvented attic is created with no ridge, soffit, gable, or other attic ventilation.

Voluntary

[85] Energy heel trusses or raised top plate.

To ensure full depth of attic insulation above exterior wall top plates, energy trusses with raised top chord or raised top plate for joist/ rafter assemblies can be used. For more information, see: https://basc.pnnl.gov/resource-guides/attic-eave-minimum-insulation#quicktabs-guides=1

Voluntary

37


1. Source: U.S. DOE Building America Solution Center and Earthcraft Virginia

[86] Attic insulated to R40 or higher

Any type of Code approved insulation may be used in the attic area to create an R-value of 40 or higher with points awarded up to R-50.

Voluntary

[87] HVAC attic raised platforms used for full insulation depth

Heating, cooling, ventilation, and water heating equipment in the attic (including ductwork) shall be raised up on platforms or hung in such a way that full attic level insulation is permitted below it.

Voluntary

[88] Attic knee wall stud cavities filled (R19)

Install R19 or greater insulation inside attic knee wall stud cavities. Voluntary

[89] Attic knee wall with continuous insulation (R5)

Install continuous insulation (R5 or greater) or insulated sheathing to the knee wall framing on the attic side of the knee wall and properly seal at seams. This should be in addition to the knee wall stud cavity insulation.

Voluntary

38


[90] Attic knee wall doors (R20)

Doors in knee walls that connect conditioned space to unconditioned attic areas shall be insulated to R20 or greater with a rigid insulation product.


Voluntary

[91] Attic access doors (R38)

Pull-down attic access stairs located in conditioned space shall have an insulated box equal to or greater than R38 on the non-conditioned side. Scuttle holes that are located in conditioned space shall be insulated to R38 or greater.

Voluntary

39



Windows, Doors, Skylights, and Light Tubes [92] NFRC Rated Windows with U-Factor and solar heat gain coefficient (SHGC) < 0.30

Windows are rated by the National Fenestration Ratings Council (NFRC) and have a U-factor of 0.30 or less and a Solar Heat Gain Coefficient (SHGC) of 0.30 or less. SHGC values may be higher when used in structures that are integrating passive solar heating into their overall energy efficiency strategy with combined shading strategies.

Voluntary

[93] NFRC Skylight U-Factor and SHGC of <.50 or less

Skylights have U-Factor and Solar Heat Gain Coefficient (SHGC) of 0.50 or less.

Voluntary

[94] Glass door solar heat Glass doors shall have a Solar Heat Gain Coefficient (SHGC) of

40


gain coefficient of < 0.40 or less or are ENERGY STAR rated

0.40 or less or have the ENERGY STAR rating.

[95] Tubular skylights

One point may be earned for the installation of each tubular skylight up to 2 points.

Voluntary

Passive Solar Design/Heat Island [96] 1.5 foot overhang over 50% of all windows

50% of all windows shall have a minimum 1.5-foot overhang to protect against solar gain. Overhangs must be no more than two feet above the tops of affected windows.


Voluntary

[97] Exterior solar shade screens

At a minimum, all windows facing east and west shall have solar shade screening with a shading coefficient of 0.7 or greater. Shade screening shall be installed on the exterior of window glazing.


Voluntary

[98] Light colored/Energy Star rated roofing materials

Install light colored and reflective roofing materials as rated by the Energy Star program at http://www.energystar.gov/index.cfm?c=roof_prods.pr_roof_produ

Voluntary

41


cts

[99] Roof with minimum 450 s.f south facing area

Design homes such that some portion of the roof has at least 450 square feet of space with clear, unobstructed access to the sun for most of the day and free from shade, preferably facing south.

Voluntary

[100] Plant two new large species native deciduous trees on south

Plant two or more large species native deciduous (leaves that fall) trees on the southern side of the house. Please see http://www.nps.gov/plants/pubs/Chesapeake/toc.htm for a list of appropriate native trees.

Voluntary

[101] All attached porches covered

Cover all attached porches with a minimum of a two foot overhang.

Voluntary

[102] HVAC equipment not oversized by more than 15% of Manual J calculations.

The size of all heating and cooling equipment shall not be sized more than 15% over the minimum heating and cooling loads determined by the current Air Conditioning Contractors Association (ACCA) Manual J guidelines.

Voluntary

[103] Furnace or boiler 90% AFUE or greater

A minimum of 75% of the home’s heating system output shall have an Annual Fuel Utilization Efficiency (AFUE) greater than or equal to 90% with greater points granted for 95% AFUE products.

Voluntary

[104] Air conditioning SEER 14 or greater

A minimum of 75% of the home’s total cooling system output shall have a Seasonal Energy Efficiency Ratio (SEER) of 14 or greater with more points awarded for up to 16 SEER or greater.

Voluntary

[105] Heat Pump HSPF 8.5 or greater

A minimum of 75% of the home’s total heating system output shall have a Heating Seasonal Performance Factor (HSPF) of 8.5 or greater with more points awarded for up to HSPF 9.0 or greater.

Voluntary

[106] Ducted mini-splits at least 16 EER

Ducted mini-split systems installed for a minimum of 50% of the home with more points awarded for up to 100% of the home’s heating and cooling needs.

Voluntary

[107] Ductless mini-splits at least 16 EER

Ductless mini-split systems installed for a minimum of 20% of the home with more points awarded for up to 100% of the home’s heating and cooling needs.

Voluntary

[108] Variable speed blower

A variable speed blower fan is being used to allow for improved energy efficiency, greater humidity removal, and quieter operation. System must be installed such that static pressure across the blower with filter installed is within manufacturer specifications. Source: Earthcraft Virginia

Voluntary

[109] Dual stage All cooling equipment has a dual-stage (or two-stage) compressor Voluntary

42


compressor for improved humidity removal and increased efficiency. The higher stage compressor must comply with the maximum 15% oversizing criteria. Source: Earthcraft Virginia

[110] Multiple Zones with separate controls and variable speed blower

For multi-zoned HVAC systems, each zone must have a separate temperature control with a variable speed blower.

Voluntary

[111] Programmable thermostats

All heating and cooling equipment has an automatic, programmable indoor thermostat installed according to manufacturer’s specifications.

Voluntary

[112] NATE certified HVAC contractor

Use an HVAC contractor with technicians certified by the North American Technician Excellence (NATE).

Voluntary

Equipment Location, Design, and Performance [113] Air handlers located within conditioned space (all units)

All air handlers are located within conditioned space.

Voluntary

[114] All ducts located within conditioned space

. All supply and return ducts are located within conditioned space with no ducts located within exterior walls, vaulted ceilings, or common walls between the garage and the home

Voluntary

[115] All ducts located in non-conditioned space insulated to (R8)

All supply and return ducts are located in non-conditioned spaces insulated to R8.

Voluntary

[116] All ducts in conditioned space insulated to (R3) for condensation potential

All ducts located within fully conditioned spaces are insulated to (R3) to eliminate the potential for condensation.

43


[117] Install Multiple return ducts, jumper ducts, or transfer grills

Each bedroom shall have a dedicated return duct, or in homes without return ducts in bedrooms, all supply air shall have a direct path back to a return grill even when doors are closed. This path shall be through created through transfer grills or jumper ducts.


Voluntary

[118] At least one primary rigid metal supply trunk line for each system

Design and install all duct systems using the “trunk and branch” configuration. The trunk and branch configuration requires that each HVAC system has at least one rigid supply trunk with multiple, short branch take-offs to each supply register. Source: Earthcraft Virginia

Voluntary

[119] Rigid ducts used on entire system with mastic for sealing

All duct systems shall feature rigid, non-flexible ducts. All joints, seams, and perforations must be sealed with liquid mastic (not mastic tape).

Voluntary

44



[120] All flex duct pulled tight with no pinches

All flex duct shall be pulled tight for optimal air flow with no pinches or kinks and supported by strapping at a minimum of every five feet.


Voluntary

45


[121] Improved duct design

Install ducts per ACCA Manual D duct design Design and install ductwork in accordance with the current ACCA Manual D guidelines. Integrate duct layout with construction documentation to ensure proper installation. At a minimum, duct layout must document duct diameter and length, and register location. Measure and balance airflow for each duct run (±20% of design) Measure and balance airflow for each room using a flow hood, anemometer or equivalent with all interior doors closed. Adjust airflow to within the greater of ±20% or 25 cfm of the load calculation room-by-room specifications. Verify supply and return duct static pressure Verify supply and return duct static pressure is within manufacturer and design specifications to have the capacity to meet the calculated loads Source: Earthcraft Virginia

Voluntary

[122] Duct blaster test results certify maximum 4% leakage to outside or maximum total duct leakage of 6%

Duct leakage to the outside is defined as the amount of duct leakage that leaves the building envelope and is tested separately from total duct leakage. Duct blaster test result for leakage to outside is equal to or less than 4% of floor area served using standard duct testing protocol set forth by ASTM for duct pressurization testing at 25 Pascals. Total duct leakage is defined as the amount of total leakage that leaves the ducts. Duct blaster test result for total leakage is equal to or less than 6% of floor area served using standard duct testing protocol set forth by ASTM for duct pressurization testing at 25 Pascals. Builder must submit verification of third party testing. Source: Earthcraft Virginia

Voluntary

Hot Water Systems [123] Energy efficient water heater (ENERGY STAR or equivalent)

Install an ENERGY STAR or equivalent energy efficient hot water heater. Units with Energy Factors (EF) of at least 0.57 for gas units and 0.90 for electric units will meet the requirements to earn this credit. Source: Earthcraft Virginia

Voluntary

[124] Individual ENERGY STAR gas tankless direct vent water heater

Install an ENERGY STAR tankless direct vent hot water unit for individual source on-demand water heating, such as in a bathroom or kitchen.

Voluntary

46


[125] Whole house ENERGY STAR gas tank less direct vent water heater

Install an ENERGY STAR tank less direct vent hot water system to supply the whole house with on-demand hot water.

Voluntary

[126] ENERGY STAR Heat pump water heater

Install an ENERGY STAR heat pump water heater.

Voluntary

[127] Hot water demand recirculation

A hot water demand system shall be installed on the fixture furthest from the water heater. This recirculation pump will minimize wait time for hot water, thereby reducing waste. Remote switches to activate the system shall be installed on intermediate fixtures between the pump and water heater.

Voluntary

[128] Waste water heat recovery device

A drain heat recovery device shall be installed on the main waste drain in the home This device recovers a minimum of 25% of the wasted heat from the drain water.

Voluntary

[129] Hot water pipe on first three feet or all hot water pipes in the home

Install insulated tubing rated to R4, to the first 3 feet of piping from the heating source or on all hot water pipes in the home. More points will be awarded for insulation the entire hot water system.

Voluntary

[130] Desuperheater

Install a desuperheater with your heat pump/hot water system. This is an energy saving device in a heat pump that, during the cooling cycle, recycles some of the waste heat from the house to heat domestic water. This can also be installed with an air conditioning system.

Voluntary

[131] Combination space/water heating

Install a system that accomplishes both space heating and water heating, for example, radiant hot water supplied by a water heater or a boiler that supplies radiant heat and hot water.

Voluntary

[132] Compact design system- 20 feet

Design the hot water system such that the distance between the heating source and the furthest fixture is 20 feet or less.

Voluntary

C. ENERGY EFFICIENT LIGHTING AND APPLIANCES [133] ENERGY STAR rated light fixtures

Install ENERGY STAR rated interior or exterior light fixtures in 50%-100% of all fixtures. See www.energystar.gov for more information.

Voluntary

[134] LED light bulbs or fixtures

Install LED fixtures or bulbs in 25%-100% of all fixtures. More points will be rewarded for installing LED bulbs within ENERGY STAR rated fixtures.

Voluntary

[135] Dimmers on at least Install dimmers on at least 3 light fixtures. Voluntary

47


3 lighting fixtures [136] Outdoor lighting controls

All exterior lighting shall have automatic photocell, motion or timer controls.

Voluntary

[137] Indoor motion controlled light controls (minimum of 3)

At least 3 non-bedroom rooms within the house have motion controlled sensors.

Voluntary

[138] Horizontal cutoff on exterior lighting

All exterior lighting shall have horizontal cutoff (shades on top of the lighting source that direct light downward) to eliminate trespass of light off of the site.

Voluntary

[139] ENERGY STAR dishwasher

Dishwasher is ENERGY STAR rated. See www.energystar.gov for more information.

Voluntary

[140] ENERGY STAR refrigerator

Refrigerator is ENERGY STAR rated. See www.energystar.gov for more information

Voluntary

[141 ENERGY STAR clothes washer

Clothes washer is ENERGY STAR rated. See www.energystar.gov for more information.

Voluntary

D. RESOURCE EFFICIENT DESIGN AND BUILDING MATERIALS [142] Compact design home

Homes containing between 2,100 and 3,500 total finished square feet shall be eligible to earn this credit.

Voluntary

[143] Existing building is preserved or preserved with no additional square footage.

Eighty percent of an existing building is incorporated into the project. Additional points are awarded for projects that retain at least 80% of the existing building without adding any additional square footage.

Voluntary

[144] Floor joists spaced to 19.2 or 24 inch centers

A minimum of 80% of all floor joists shall be spaced at 19.2 inches or 24 inches on center.

Voluntary

[145] Exterior wall studs spaced to 16-inch centers

All exterior wall studs spaced to a minimum of 16 inches on center.

Voluntary

[146] 2-stud corners with drywall clips

Utilize 2-stud corners to reduce framing and increase insulation.

Voluntary

48



[147] Ladder T-Walls at all locations

The intersection of exterior and interior walls shall eliminate non-structural studs and allow for full exterior wall insulation through the use of advanced ladder T-wall framing or other technique.


Voluntary

Recycled and Natural Content Materials [148] FSC or SFI certified lumber

Forestry Stewardship Council (FSC Certified) or Sustainable Forestry Initiative (FSI) lumber shall be used for at least one major component of a project, such as wall studs, flooring, etc… All wood must be stamped. More points may be awarded for higher

Voluntary

49


percentages of sustainable wood products.

[149] Recycled concrete from outside source used as aggregate on-site

Demolished concrete from an outside source shall be reused on the project site as aggregate in poured concrete structures.

Voluntary

[150] Reclaimed wood flooring from outside source

Wood flooring reclaimed from an outside source is used in at least 50% of the square footage of all wood flooring installed in the project.

Voluntary

[151] Wood flooring retained or reused on-site (25% min.)

Wood flooring retained in an existing home or reused elsewhere within the same home. At least 25% of the existing wood flooring must be retained or reused in the home with a greater number of points granted to projects that utilize a higher percentage of reused flooring.

Voluntary

[152] Reclaimed, FSC certified or non-wood bio-based cabinets

All cabinets must be reclaimed or constructed of reclaimed wood; constructed of FSC or SFI certified woods; or constructed of bio-based materials, such as wheat board. More points may be awarded for these cabinets used in more than one room.

Voluntary

[153] Recycled content tiles (25% content)

Tiles with at least 25% recycled content shall be used in the home.

Voluntary

[154] Recycled content countertop (25% content)

Countertop materials with a minimum of 25% recycled content may be used in one or more room applications. Additional points may be granted for use in multiple locations.

Voluntary

[155] Recycled content insulation or bio-based insulation (25% content)

At least 50% of all insulation materials shall have a minimum of 25% recycled material content. Recycled denim and newspaper based insulations are examples.

Voluntary

[156] Recycled content roofing (25% content)

Roofing materials shall have a minimum of 25% recycled content.

Voluntary

[157] Recycled siding (25%)

All siding is either reclaimed from on-site or elsewhere or has a recycled material content. Fiber cement boards are an example.

Voluntary

[158] Cork, bamboo, or natural linoleum flooring

Home shall contain cork, bamboo, or linoleum flooring, rapidly renewable and durable materials. Additional points may be granted for use in multiple rooms.

Voluntary

[159] Wool, hemp, or biobased carpeting

Carpet and carpet backing shall be constructed of organic materials, such as wool, hemp, or vegetable based products that readily biodegrade when exposed to moisture and sunlight.

Voluntary

[160] Sealed concrete floor

Sealed concrete flooring. Additional points may be granted for use in multiple rooms.

Voluntary

50


[161] Sealed concrete countertop fabricated on site

Sealed concrete must be fabricated on site. Additional points may be awarded for use in multiple rooms

Voluntary

[162] Carpet with recycled content (50% content)

All floor carpeting shall have a minimum of 50% recycled material content for face fibers and backing. Additional points may be awarded for use in multiple rooms.

Voluntary

[163] Recycled outdoor deck flooring (50% content)

Outdoor decking shall have a minimum of 50% recycled material content. Additional points may be granted for use in multiple locations.

Voluntary

[164] Locally produced products (manufactured within 500 miles of site

Utilized products that are manufactured within 500 miles of the site. Additional points may be granted for use in multiple locations.

Voluntary

Advanced Manufactured Products [165] Engineered floor framing and open web trusses (80%)

A minimum of 80% of floor joist framing shall be non-dimensional engineered structural wood, such as open web trusses or I-beams, or non-wood material.

Voluntary

[166] Engineered roof framing (80%)

A minimum of 80% of roof framing shall be non-dimensional engineered structural wood, such as trusses or I-beams, or non-wood material, such as steel.

Voluntary

[167] Engineered wall framing (25% or more)

A minimum of 25% of the total wall framing materials shall be manufactured from non-solid sawn wood, such as laminated or finger-jointed studs. Exterior steel studs are not eligible for this credit unless the entire exterior surface of the studs is covered with a minimum R10 insulated sheathing. Additional points may be granted for use in a greater percentage of walls.

Voluntary

[168] Panelized wall construction delivered to site pre-framed (80%)

A minimum of 80% of walls shall be constructed of factory fabricated wall sections that are delivered to the site pre-framed.

Voluntary

[169] Modular construction for entire house or addition

Construct a home entirely out of a modular set of building components that are constructed off site and delivered in modules.

Voluntary

[170] Structural Insulated Panels (SIPs) for exterior walls (80%)

A minimum of 80% of all exterior walls shall be composed of structural insulated panels. Structural insulated panels must be installed according to manufacturers’ specifications. The use of insect screens is highly recommended.

Voluntary

[171] Structural Insulated Panel (SIPs) for roof (80%)

A minimum of 80% of all roof area shall be structural insulated panels with a minimum of R30. Structural insulated panels must be installed according to manufacturers’ specifications. Points are

Voluntary

51


also awarded for this technique in the Insulation and Bonus sections.

[172] Foundation walls composed of pre-cast autoclaved aerated concrete (AAC), insulated concrete forms (ICFs), or other precast insulated foundation (90%)

Construct a minimum of 90% of foundation walls using either insulated concrete forms (ICF), precast autoclaved aerated concrete (AAC) or other precast insulated foundation. Install ICF walls according to manufacturer’s specification, and meet the State of Virginia termite protection guidelines for ground contact insulation. Install AAC walls according to manufacturer’s specifications and meet the prescriptive requirements for basement or mass walls as applicable in currently adopted IECC. Source: Earthcraft Virginia

Voluntary

[173]Walls composed of Insulated Concrete Forms (ICFs) or pre-cast autoclaved aerated concrete (80%)

A minimum of 80% of exterior walls shall be composed of insulated concrete forms with a minimum of R15. Walls shall be installed according to manufacturers’ specifications and meet termite protection guidelines for the State of Virginia for ground contact insulation.

Voluntary

E. Durability and Moisture Management [174] Roof Warranty 30 years or longer

Shingle or other exterior roofing material shall have a minimum 30-year manufacturer’s warranty. Additional points will be granted for longer warranty periods.

Voluntary

[175] Full roof ice dam protection

The entire roof decking is protected with an approved ice and water protection material.

Voluntary

[176] Double layer builder paper behind cementitious stucco or stone veneer

A double layer of building paper or house wrap is used behind cladding tending to absorb and retain moisture such as cement stucco and stone veneer.

Voluntary

[177] Exterior cladding with 40 year warranty or masonry

A minimum of three sides of exterior wall cladding has a 40-year manufacturer’s warranty or is a durable natural material such as masonry stucco, stone or brick.

Voluntary

52


[178] Vented rain screen between cladding and wall sheathing

All exterior wall area shall have a 1/2 inch air space between the exterior cladding and wall sheathing in addition to some type of house wrap. This air space can be created with furring strips or other materials. The system shall be integrated with flashing and be designed and installed to minimize moisture migration between the exterior cladding and the wall sheathing.

Source: Earthcraft Virginia and U.S. EPA

Voluntary

[179] Back-primed wood-based siding and trim

All six sides of painted or stained exterior wood-based siding and trim shall be primed prior to installation.

Voluntary

[180] All roof valleys direct water away from

All roof valleys shall be designed and constructed to direct rainwater away from walls, dormers, and chimneys.

Voluntary

53


walls, dormers, and chimneys [181] Maintain at least 2" clearance between all wall cladding and roof surfaces

All wall cladding is installed no closer than 2 inches to any adjoining roof surface.

Voluntary

[182] Continuous foundation termite flashing

A continuous termite flashing covers 100% of the foundation stem wall, piers, and other potential entry points. The termite shield can be fabricated from metal, rubberized membrane or similar material that forms a physical barrier to termites. All seams and penetrations in the termite shield shall be sealed to prevent termite entry.

Voluntary

[183] Termite resistant materials for structural components and cladding

Utilized termite resistant materials for structural components of the home and cladding.

Voluntary

[184] Non-toxic pest treatment applied to all lumber next to foundation

Pre-treat all lumber in contact with the foundation with a low-toxicity pest treatment. Lumber is treated to a minimum height of two feet about the foundation.

Voluntary

[185] Non-toxic mold inhibitor applied to all lumber with warranty

A non-toxic mold inhibitor is applied to all lumber used in the building frame. A copy of the warranty should be provided for this credit.

Voluntary

[186] Keep all wood 12" above soil

All wood trim and siding is installed at least one foot about ground level or soil height.

Voluntary

[187] Keep all vegetation at least 2’ from house

Plants are installed such that, at maturity, they will be no closer than 2’ from the home’s foundation or walls.

Voluntary

[188] Roof gutters discharge water 5' from foundation

All rain from the roof is collected in a roof gutter system and directed via downspouts such that water is discharged at least 5 feet away from the foundation.

Voluntary

54



[189] Insulate cold water pipes inside conditioned space

All cold water pipes inside conditioned and semi-conditioned space are insulated, including in inaccessible interstitial locations, for condensation prevention.

Voluntary

[190] Enclose all crawl spaces

All crawl spaces are enclosed and unvented with a 6 mil. or higher vapor barrier over the ground.

Voluntary

[191] Covered entry ways

Home is equipped with covered entry ways no less than three feet in depth above every exterior door.

Voluntary

[192] Grade soil and all hard surfaces to slope away from foundation

Grade soil and impervious surfaces away from the foundation, such that water does not collect near the foundation.

Voluntary

[193 Drainage plane material on below grade walls

All below grade walls shall be damp-proofed and feature a drainage plane material that channels water down to the drain tile.

Voluntary

55


Source: Earthcraft Virginia [195] Sump pump in basement with sealed cover

A sump pump is installed in an optimal location within the basement with a sealed cover and exterior vent.

Voluntary

[196] Capillary break between foundation and framing

A capillary break is installed between all concrete foundation walls and sill plates. A complete framed wall width sill gasket, EPDM- type rubber, or other suitable membrane shall be installed to prevent moisture from wicking through the foundation into the framing.

Voluntary

[197] Supplemental dehumidification

Install supplemental dehumidification equipment in the home. All equipment should be ENERGY STAR rated.

Voluntary

56


(ENERGY STAR equipment) [198] Waterproof Membrane in entire shower enclosures

Install a waterproof membrane beneath all tile or alternate shower enclosure surfaces. Additional bonus points may be granted if such a waterproof membrane is installed on the entire bathroom floor.

Voluntary

[199] Rigid, moisture resistant backing material behind tubs and showers

Install cement board, fiberglass enhanced sheathing or equivalent moisture-resistant backing material on walls behind tubs and showers with tile or panel assemblies with caulked joints. Install moisture-resistant backing material in accordance with manufacturer specifications. Source: Earthcraft Virginia

Voluntary

[200] Wall cavity insulation without a vapor retarder or kraft paper

Utilize wall cavity insulation without a vapor retarding or kraft paper facing in appropriate locations and per manufacturers’ instructions.

Voluntary

[201] Paperless drywall in kitchens, baths, and on foundation walls

Utilize paperless drywall materials in areas where high humidity is present, such as the kitchen, bath, and on foundation walls/basements.

Voluntary

[202] No carpet in basement

Do not install carpet in the basement.

F. INDOOR AIR QUALITY IMPROVEMENT Combustion Safety REQUIRED: [203] No unvented natural gas combustion fireplaces permitted

Do not install unvented combustion fireplaces REQUIRED

[204] All combustion appliances are sealed/direct vented, including fireplaces

All fuel-burning appliances shall be sealed combustion, direct vent units, as rated by the American Gas Association (AGA). Fireplaces also must contain a gasketed glass door. AGA website is www.aga.org.

Voluntary

[205] Detached garage or carport

The garage shall be completely isolated by a minimum of 6 inches from the exterior walls or floor of any conditioned area of the house. An open carport is also eligible for these points.

Voluntary

57


[206] Attached garage – air seal between house and garage

The bottom plate and all penetrations (such as plumbing or electrical lines) in the connecting wall and rim and band area between an attached garage and house shall be sealed with suitable rigid materials, sealant, gasket, or construction adhesive to prevent air movement between the house and garage.

Voluntary

[207] Attached garage with automatic exhaust fan

An attached garage has an exhaust fan rated at a minimum of 100 cubic feet per minute of air flow and is controlled by a timer or motion detector if operated intermittently, or the fan shall be rated at a minimum of 25 cubic feet per minute if operated continuously.

Voluntary

[208] No HVAC ducts, supplies, returns, or equipment in garage

No air handlers, supplies, returns, or other HVAC mechanical equipment should be installed within the garage area. This is to protect inhabitants from possible back drafting of carbon monoxide from vehicles and other chemicals that may be stored in garages.

[209] Backdraft depressurization test

A “worst case house depressurization test” shall be performed by an independent third party. The test shall verify that household appliances, including exhaust fans, clothes dryer, power vented water heater, and air handler, does not create negative indoor pressures of above a certain level such that carbon monoxide from the flue gases of gas appliances will not be sucked back into the home. See the following for more information. https://basc.pnnl.gov/resource-guides/combustion-appliance-zone-caz-testing#quicktabs-guides=2

Voluntary

Ventilation [210] Energy Recovery Ventilator

A mechanical ventilation system is recommended when a blower door test shows air exchange levels below those in the ASHRAE 62.2-2007 ventilation standards. A controlled balanced ventilation system shall provide for continuous whole house ventilation to meet those standards. For more information see: https://basc.pnnl.gov/resource-guides/whole-building-delivered-ventilation#quicktabs-guides=1

Voluntary

[211] ENERGY STAR ceiling fans (minimum of 3)

A minimum of three (3) ENERGY STAR labeled ceiling fans shall be installed on the interior of the house.

Voluntary

[212] All bathrooms have ENERGY STAR rated exhaust fans that vent

All bathrooms have ENERGY STAR rated exhaust fans that vent to the outside.

Voluntary

58


outside [213] Bath fans with rigid ducts

Rigid ducting between the unit and the building exterior is used on all bath fans and the ducting must be sealed with mastic.

Voluntary

[214] Automatic tub/shower room fan controls

All bath fans installed in rooms with tubs or showers shall have timers or automatic humidity controls.

Voluntary

[215] Kitchen range hood or downdraft vented to exterior with maximum of 400 cfm.

All kitchen range or downdraft hoods shall be vented directly to the outdoors and will have a maximum rating of 400 cfm.

Voluntary

[216] Radon gas vent system

A passive or active radon vent system is installed in compliance with EPA guidelines for “Building Radon Out” guidelines. If the home tests for high radon levels after a passive vent system has been installed, the homeowner can add a power vent to the system. More information can found online at: https://resaveguide.lbl.gov/step-3-whole-building-ventilation-rate and www.epa.gov/radon/pdfs/buildradonout.pdf

Voluntary

59


Sources: Earthcraft Virginia and EPA

[217] Effective cross ventilation with insect screens

Windows with screens are located opposite each other on parallel walls.

Voluntary

[218] Effective stack ventilation (e.g. cupola, clerestory, with operable skylight, and insect screens.)

An operable window is constructed within a cupola, heat chimney/operable elevated skylight, or clerestory window with insect screens to allow warm air to rise out of the building.

Voluntary

[219] New MERV 6 or better and pleated HVAC filters installed

MERV 6 or greater pleated filters are installed prior to the running of any mechanical equipment during construction and new MERV 6 rated filters installed when construction is completed just prior to occupancy.

Voluntary

[220] HVAC Filter access panel includes gasket and fits tightly

Access panels for HVAC filters include tight fitting gasketed door or panels.

Voluntary

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[221] Ducts protected until construction completed with rigid material

All duct boots shall be sealed from contamination during construction, including during sheetrock, finish floor installation, and painting with a solid material that is tightly sealed to the subfloor or finished floor.

Voluntary

[222] Flush house continuously with fresh air for one week prior to occupancy

Leave windows or other openings open continuously for one full week prior to occupancy, or alternatively, run ventilation system continuously for one week prior to occupancy.

Voluntary

Materials [223] Prefinished flooring

Utilize pre-finished flooring that does not require additional stains or finishes once installed inside the house.

Voluntary

[224] Subfloor urea-formaldehyde free

Subflooring does not contain urea-formaldehyde.

Voluntary

[225] Plywood or composite woods are urea-formaldehyde free

Non sub-floor plywoods or composite woods do not contain urea-formaldehyde, including wall and roof sheathing.

Voluntary

[226] Urea-formaldehyde free cabinetry.

Cabinetry does contain urea-formaldehyde.

Voluntary

[227] Zero VOC paints interior

All interior paints shall contain zero VOCs.

Voluntary

[228] Low VOC stains and finishes on wood floors (less than 250 g/l)

All interior wood floor stains and finishes shall have a maximum VOC (Volatile Organic Compound) content of 250 g/l.

Voluntary

[229] Low VOC sealants and adhesives (less than 250 g/l)

All interior sealants and adhesives, such as carpet, subfloor, and construction adhesive, shall have a maximum VOC (Volatile Organic Compound) content of 100 g/l.

Voluntary

[230] Formaldehyde free fiberglass insulation

Use fiberglass insulation that contains no urea- formaldehyde materials.

Voluntary

[231] Low VOC carpet All carpet in the home shall be Carpet and Rug Institute (CRI) certified Green Label Plus. The builder shall provide proof that the installed carpet is on the list provided at http://www.carpet-rug.org/residential-customers/selecting-the-right-carpet-or-rug/green-label-plus-carpet-list.cfm

Voluntary

G. WATER USE REDUCTION Indoors REQUIRED

61


[232] All bathroom vanity faucets not to exceed 1.5 gpm

All vanity faucets within bathrooms must have a flow rate of no more than 1.5 gallons per minute (gpm).

Required

[233] Water filter (NSF Certified)

Primary kitchen faucet is installed with a water filter that meets National Sanitation Foundation (NSF) specifications.

Voluntary

[234] ENERGY STAR Clothes Washer

Clothes washer is ENERGY STAR (www.energystar.gov) labeled.

Voluntary

[235] ENERGY STAR Dishwasher

Dishwasher is ENERGY STAR (www.energystar.gov) labeled or equivalent in terms of water use.

Voluntary

[236] Pressure reducing valve

A pressure reducing valve is installed on the house side of the main shut off valve to control water pressure to all fixtures at a rate equal to or less than 60psi.

Voluntary

[237] High efficiency showerheads (maximum 2.0gpm with single shower head/bathroom)

All showerheads have a maximum flow rate of 2.0gpm gallons per minute (gpm).Only showers with one showerhead or showerheads with a cumulative flow rate of 2.0gpm comply with this credit. Additional points may be granted for additional bathrooms with a single low flow showerhead.

Voluntary

[238] High efficiency bathroom faucets (max 1.0 gpm)

Bathroom faucets are utilized with flow rates of no more than 1.0 gallon per minute. Additional points may be granted for using more than one such faucet.

Voluntary

[239] High efficiency kitchen faucets (max.1.5 gpm)

Kitchen faucets are utilized with flow rates of not more than 1.5 gallon per minute.

Voluntary

[240] High efficiency toilets- dual flush or maximum 1.28 gpf

Dual flush toilets or maximum flow rate of 1.28 gallon per flush toilets are utilized in the home. Additional points may be granted for using more than one such toilet.

Voluntary

[241] Rainwater reused for indoor toilet flushing

Utilize rainwater for toilet flushing as permitted by Code. Voluntary

[242] Hot water demand recirculation

A hot water demand system shall be installed on the fixture farthest from the water heater. This recirculation will minimize wait time for hot water, thereby reducing waste. Remote switches to activate the system shall be installed on intermediate fixtures between the pump and the water heater.

Voluntary

[243] Manifold distribution system

A manifold distribution system shall be installed so that each plumbing fixture in the house, or unit has a dedicated water line back to the manifold. This design approach minimizes the diameter of the water pipes and reduces the amount of water wasted while

Voluntary

62


waiting for hot water to reach the fixture.

[244] Compact designed system- all fixtures within 20 feet of water heater

The house is designed such that all fixtures are within 20 feet (pipe length) from the water heater.

Voluntary

Outdoors [245] Timer on hose bibs or irrigation systems

Each outdoor hose bib shall have a timer to control irrigation, or if an irrigation system is installed, it shall have a timer.

Voluntary

[246] Drip irrigation system

A minimum of 50% of landscape planting beds shall have a drip irrigation system.

Voluntary

H. WASTE REDUCTION Deconstruction Practices [247] Deconstruction Options (Choose 1):

Whole house deconstruction with third party plan and report: Utilize a third party organization to do full deconstruction with all valuable components donated for reuse and all non-reusable wood, cardboard, glass, metal, drywall, and roof shingles and other waste delivered to a recycling facility. The vendor must supply a report of the results to all of the materials in order to earn this credit. OR Use 3rd party vendor/hauler for commingled recycling of all waste cardboard, wood, glass, metals, roof shingles, drywall, and other non-reusable materials Utilize a third party vendor (hauler) to collect at least 5 deconstructed materials of the following: commingled wood, cardboard, glass, metal, drywall, and roof shingles. These should be collected on-site in a roll-off container and delivered to a recycling facility. A recycling report from the facility is required to receive this credit.

Voluntary

[248] Recycle deconstructed waste wood materials

Send all non-reusable wood from a deconstruction project to a recycling facility. Receipts from the recycling facility must be presented to earn this credit.

Voluntary

[249] Recycle deconstructed roof shingles

Send all used roof shingles from a deconstruction project to a recycling facility. Receipts from the recycling facility must be presented to earn this credit.

Voluntary

[250] Recycle deconstructed drywall and plaster

Send all deconstruction drywall and plaster from the project to a recycling facility. Receipts from the recycling facility must be presented to earn this credit.

Voluntary

63


[251] Recycle all deconstructed metal products

Send all deconstructed metal products, such as pipes, gutters, or siding from a deconstruction project to a third party recycling facility. Receipts from the recycling facility are required to earn this credit.

Voluntary

[252] Donate used wood flooring for reuse.

Donate used wood flooring from deconstruction projects to a third party. Receipts from the receiving organization are required to earn this credit.

Voluntary

[253] Donate used appliances less than 8 years old for reuse

Donate used appliances less than 8 years old to a third party. Receipts from the receiving organization are required to earn this credit.

Voluntary

[254] Donate used cabinetry for reuse

Donate used cabinetry to a third party. Receipts from the receiving organization are required to earn this credit.

Voluntary

Waste Management Practices for Projects While Under Construction [255] Donation of excess materials or re-use (min $500 per job)

Builder shall avoid disposal of excess construction materials by donating excess to a nonprofit 501c(3) organization or by re-using the construction materials for another job. The value of donated or re-used materials must be $500 or greater. Builder must provide donation receipt or other evidence.

Voluntary

[256] Use 3rd party vendor/hauler for recycling (on-site rolloff) throughout construction:

The builder shall have a third party vendor or hauler take at least two of the following waste items to a recycling facility. These items include: wood, metal, glass, cardboard, plastics, drywall, and shingles. Additional points may be granted for the recycling of more than two of these items up to five items. A receipt from the recycling facility is required to earn this credit.

Voluntary

[257] Provide on-site recycling container for worker beverage bottles and paper products

Provider container in a visible place and labeled for recycling use in English and in Spanish with a list of acceptable items, a recycling symbol, and “Not for Trash.”

Voluntary

I. ON-SITE ALTERNATIVE ENERGY AND CONDITIONING [258] Solar electric system designed to produce at least 2 kilowatts of power.

Alternative energy system designed to produce 2 kilowatts or more of electric power up to 8 kilowatts. More points may be awarded for larger systems.

Voluntary

[259] Solar hot water system with ENERGY STAR back up tank

Install a solar hot water system. If any active back up tank or tank less storage is required, it must be ENERGY STAR labeled or with an energy factor (EF) up to 0.63. Tankless storage units may have an energy factor of up to 0.69.

Voluntary

64


[260] Solar ready home (PV or water)- Provide Chase

Design the home such that the roof orientation is acceptable for solar collection and create conduits for future system electrical or plumbing connections.

Voluntary

[261] Geothermal (Ground Source) heat pump with minimum EER=15

A minimum of 75% of the homes’ heating and cooling system output must be supplied by a geothermal heat pump with a minimum EER or 15. These ratings are determined by the Air Conditioning and Refrigeration Institute (ARI). www.ARI.org

Voluntary

J. HOMEBUYER EDUCATION [262] Homeowner's Manual

Each project must provide a homeowner’s manual or folder prior to the completion of the certification process. It should include the finished signed GHC Scoresheet, photos of the construction process, literature from all products, systems, and appliances in the home, and proof of all items with “Required Documentation” on the GHC Scoresheet.

Required

[263] Promote the Green Home Choice Program with use of logos

Builder includes Arlington Green Home Choice logo in all print materials, advertisements and other promotional materials from the beginning of construction through the certification.

Voluntary

[264] Promote the Green Home Choice Program using the sign on the property

Builder uses Green Home Choice sign on the property from time of application to project completion.

Voluntary

[265] Host public open house

Host at least one public open house during construction or after project completion or participate in the Annual Green Home and Garden Tour. Green Home Choice can help with the advertisement of this.

Voluntary

[266] Built-in recycling center

Designate one built-in area of the main living area of the home for recyclable materials. Kitchen cabinet pull-out bins can suffice for this use.

Voluntary

K. BONUS POINTS [267] Accessibility/Universal Design

Design and construct project to ensure accessibility to individuals of all ages and abilities. Provide the following design features on the ground (or entry) level of the home:

A safe and continuous path of travel from the street entrance and/or parking area to a dwelling entrance that is level

Internal doors and corridors that facilitate comfortable and unimpeded movement between spaces (minimum of 36” doorways and 36” hallways)

65


A bathroom that provides easy access and contains: A step-free shower recess Reinforced walls around the toilet, shower and bath to

support the safe installation of grab bars 5’ turning radius in kitchen A bedroom that once reasonably furnished, will provide a

5’ turning radius Rocker light switches Lever door handles (or equivalent)


[268] Alternative vehicles electric changing station

Bonus points shall be awarded for a home equipped with an electric charging station with a separate appropriately sized circuit associated with it to charge an electric vehicle.

Voluntary

[269] American Lung Association Healthy House or EPA Indoor AirPLUS certificate.

Points shall be awarded for homes built according to the criteria and performance standards set forth by the American Lung Association® for the Health House Project or the by the EPA for the Indoor AirPLUS certificate. http://www.epa.gov/indoorairplus/

Voluntary

[270] EPA WaterSense program

Certification of the home within the EPA WaterSense program.

Voluntary

[271] Exceeds ENERGY STAR qualification minimum requirements

One point may be awarded for each percentage point that the project scores on the Home Energy Rating Index (HERS) above the required standard for an ENERGY STAR qualified home certification up to a maximum of 5 points. For example if the minimum HERS Index for a home is 85, a score of 70 would allow for 3 bonus points in this category.

Voluntary

[272] Homeowner agrees to provide a years’ worth of utility data.

Homeowner agrees to provide utility data. For new construction, this would mean providing gas and electric data for a period of 12 months after the home was occupied. For renovation projects, utility data for 12 months prior to the renovation and 12 months post- renovation and re-occupancy is provided.

Voluntary

[273] Innovation Points, Maximum 25 points.

The construction team may submit specifications for innovative products or design features to quality for additional points for innovative sustainability features. These points are determined by the GHC manager and the applicant based on green innovation.

Voluntary

[274] All rigid ductwork with only mastic as sealant

See Credit 119 for description Voluntary

66


[275] Spray applied air barrier in all band joist cavities


[276] Spray applied air barrier in all exterior wall cavities


[277] Continuous air barrier on the exterior of all walls


[278] Continuous insulation on exterior of all walls (Minimum R5)


[279] Continuous insulation on basement walls


[280] Spray applied air barrier on attic floor

See Credit for description Voluntary

[281] Continuous air barrier formed on attic floor or at roofline

See Credits 55, 68, and 83 for descriptions of possible scenarios

Voluntary

[282] Continuous insulation under entire slab


[283] SIP, ICF, or AAC for all exterior walls (R20 min.)


[284] Entire Roof composed of SIPs


[285] Tankless Water Heater


[286] No ducts or total duct leakage < 6%


Documents

Arlington Green Home Choice Guidance Manual...1 Arlington Green Home Choice Guidance Manual (This manual provides participation instructions and describes the credits listed in the