CITY OF RICHMOND FIRE STATION 19 RE-ROOFING TECHNICAL ... · Built up Roofing — Black Tar Layers & White Bottom Layer of Roof C Black Curb Flashing Around Metal Roof Vent — Roof

CITY OF RICHMOND

CITY OF RICHMOND FIRE STATION 19 RE-ROOFING

TECHNICAL SPECIFICATIONS

April 4, 2018

PREPARED BY: PECK PECK AND ASSOCIATES, INC.

12506-C Lake Ridge Drive Woodbridge, Virginia 22192

CITY OF RICHMOND

CITY OF RICHMOND FIRE STATION 19 RE-ROOFING

TECHNICAL SPECIFICATIONS

April 4, 2018

PREPARED BY:

ARCHITECTS

Peck Peck & Associates, Inc. 12506-C Lake Ridge Drive

Woodbridge, Virginia 22192

ENGINEER Alpha Corporation

1850 S. Loudoun Street Siute 200

Winchester, VA 22601

CITY OF RICHMOND Fire Station 19 Re-Roofing

TABLE OF CONTENTS

TABLE OF CONTENTS

DIVISION 02 EXISTING CONDITIONS

Section 02 41 19 Selective Demolition DIVISION 05 METALS

Section 05 55 00 Metal Fabrications DIVISION 07 THERMAL AND MOISTURE PROTECTION

Section 070 01 50.19 Preparation for Re-Roofing Section 075216 SF - Styrene-Butadiene-Styrene (SBS) Modified Bituminous

Membrane Roofing Section 07 71 00 Roof Specialties


SELECTIVE DEMOLITION 024119 - 1

SECTION 024119 - SELECTIVE DEMOLITION

1.1 SUMMARY

A. Section Includes:

1. Demolition and removal of selected portions of building roof.

1.2 MATERIALS OWNERSHIP

A. Unless otherwise indicated, demolition waste becomes property of Contractor.

B. Historic items, relics, antiques, and similar objects including, but not limited to, cornerstones and their contents, commemorative plaques and tablets, and other items of interest or value to Owner that may be uncovered during demolition remain the property of Owner.

1. Carefully salvage in a manner to prevent damage and promptly return to Owner.

1.3 PREINSTALLATION MEETINGS

A. Predemolition Conference: Conduct conference at Project site.

1.4 INFORMATIONAL SUBMITTALS

A. Engineering Survey: Submit engineering survey of condition of building.

B. Proposed Protection Measures: Submit report, including Drawings, that indicates the measures proposed for protecting individuals and property[, for environmental protection] [, for dust control] [and] [, for noise control]. Indicate proposed locations and construction of barriers.

C. Schedule of selective demolition activities with starting and ending dates for each activity.

D. Predemolition photographs or video.

E. Statement of Refrigerant Recovery: Signed by refrigerant recovery technician.

1.5 CLOSEOUT SUBMITTALS

A. Inventory of items that have been removed and salvaged.



1.6 QUALITY ASSURANCE

A. Refrigerant Recovery Technician Qualifications: Certified by an EPA-approved certification program.

1.7 FIELD CONDITIONS

A. Owner will occupy portions of building immediately adjacent to selective demolition area. Conduct selective demolition so Owner's operations will not be disrupted.

B. Conditions existing at time of inspection for bidding purpose will be maintained by Owner as far as practical.

C. Notify Architect of discrepancies between existing conditions and Drawings before proceeding with selective demolition.

D. Hazardous Materials:

1. Hazardous materials are present on site. Refer to report by France Environmental, Dated November 14, 2018, at the end of this section.

2. Existing poured gypsum roof deck has asbestos containing materials. The design intent is to leave the existing roof deck un-disturbed.

3. If suspected hazardous materials are encountered, do not disturb; immediately notify Architect and Owner.

E. Storage or sale of removed items or materials on-site is not permitted.

F. Utility Service: Maintain existing utilities indicated to remain in service and protect them against damage during selective demolition operations.

1. Maintain fire-protection facilities in service during selective demolition operations.

G. Arrange selective demolition schedule so as not to interfere with Owner's operations.

1.8 WARRANTY

A. Existing Warranties: Remove, replace, patch, and repair materials and surfaces cut or damaged during selective demolition, by methods and with materials and using approved contractors so as not to void existing warranties.



PART 2 - PRODUCTS

2.1 PERFORMANCE REQUIREMENTS

A. Regulatory Requirements: Comply with governing EPA notification regulations before beginning selective demolition. Comply with hauling and disposal regulations of authorities having jurisdiction.

B. Standards: Comply with ASSE A10.6 and NFPA 241.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Verify that utilities have been disconnected and capped before starting selective demolition operations.

B. Perform survey of condition of building to determine whether removing any element might result in structural deficiency or unplanned collapse of any portion of structure or adjacent structures during selective building demolition operations.

3.2 PREPARATION

A. Refrigerant: Before starting demolition, remove refrigerant from mechanical equipment according to 40 CFR 82 and regulations of authorities having jurisdiction.

3.3 UTILITY SERVICES AND MECHANICAL/ELECTRICAL SYSTEMS

A. Existing Services/Systems to Remain: Maintain services/systems indicated to remain and protect them against damage.

B. Existing Services/Systems to Be Removed and: Locate, identify, disconnect, and seal or cap off utility services and mechanical/electrical systems serving areas to be selectively demolished.

1. Owner will arrange to shut off indicated services/systems when requested by Contractor.

2. If services/systems are required to be removed or relocated during construction provide temporary services/systems that bypass area of selective demolition and that maintain continuity of services/systems to other parts of building.

3.4 PROTECTION

A. Temporary Protection: Provide temporary barricades and other protection required to prevent injury to people and damage to adjacent buildings and facilities to remain.



B. Temporary Shoring: Design, provide, and maintain shoring, bracing, and structural supports as required to preserve stability and prevent movement, settlement, or collapse of construction and finishes to remain, and to prevent unexpected or uncontrolled movement or collapse of construction being demolished.

C. Remove temporary barricades and protections where hazards no longer exist.

3.5 SELECTIVE DEMOLITION

A. General: Demolish and remove existing construction only to the extent required by new construction and as indicated. Use methods required to complete the Work within limitations of governing regulations and as follows:

1. Neatly cut openings and holes plumb, square, and true to dimensions required. Use cutting methods least likely to damage construction to remain or adjoining construction. Use hand tools or small power tools designed for sawing or grinding, not hammering and chopping. Temporarily cover openings to remain.

2. Cut or drill from the exposed or finished side into concealed surfaces to avoid marring existing finished surfaces.

3. Do not use cutting torches. 4. Locate selective demolition equipment and remove debris and materials so as

not to impose excessive loads on supporting walls, floors, or framing. 5. Dispose of demolished items and materials promptly.

B. Site Access and Temporary Controls: Conduct selective demolition and debris-removal operations to ensure minimum interference with roads, streets, walks, walkways, and other adjacent occupied and used facilities.

C. Removed and Reinstalled Items:

1. Clean and repair items to functional condition adequate for intended reuse. 2. Pack or crate items after cleaning and repairing. Identify contents of containers. 3. Protect items from damage during transport and storage. 4. Reinstall items in locations indicated. Comply with installation requirements for

new materials and equipment. Provide connections, supports, and miscellaneous materials necessary to make item functional for use indicated.

D. Existing Items to Remain: Protect construction indicated to remain against damage and soiling during selective demolition. When permitted by Architect, items may be removed to a suitable, protected storage location during selective demolition and cleaned and reinstalled in their original locations after selective demolition operations are complete.

3.6 CLEANING

A. Remove demolition waste materials from Project site and dispose of them in an EPA-approved construction and demolition waste landfill acceptable to authorities having jurisdiction.



1. Do not allow demolished materials to accumulate on-site. 2. Remove and transport debris in a manner that will prevent spillage on adjacent

surfaces and areas. 3. Remove debris from elevated portions of building by chute, hoist, or other device

that will convey debris to grade level in a controlled descent.

B. Burning: Do not burn demolished materials.

C. Clean adjacent structures and improvements of dust, dirt, and debris caused by selective demolition operations. Return adjacent areas to condition existing before selective demolition operations began.

END OF SECTION 024119

November 14, 2017

City of Richmond (COR) Department of Public Works 900 East Broad Street Suite G7 Richmond, VA 23219

ATTN. Mr. William “Rob” Irby Capital Projects Manager

RE: Asbestos Survey Report COR, Fire Station # 19 — Roof Replacement Project 311 Maple Street, Richmond, Virginia FEI Project Number: FEI-17AS590

Dear Mr. Irby:

France Environmental, Inc. (FEI) has completed the asbestos sampling of the suspect roofing materials that may be impacted by the scheduled roof replacement project at the City of Richmond Fire Station #19. The sampling was limited to the roofing materials and did not encompass a comprehensive survey. Mr. Micheal D. Allshouse (Virginia Asbestos Inspector License Number 3303003902) conducted the fieldwork on October 27, 2017.

Asbestos Sampling:

FEI collected twenty-six (26) multi-layered bulk samples of suspect asbestos-containing materials (ACMs). A list of the samples collected and the analytical results for these samples can be found in the attached Bulk Sample Summary Sheet. FEI hand delivered the samples to AmeriSci Laboratories, Inc. in Midlothian, Virginia where they were separated into thirty-eight (38) individual layers and analyzed for the presence of asbestos by Polarized Light Microscopy(PLM).

A material is considered by the U. S. Environmental Protection Agency (EPA) and the Commonwealth of Virginia to be an ACM if at least one sample collected from a multi-sample group contains asbestos in an amount greater than one percent (>1 %). The following materials sampled were confirmed to contain asbestos:

Built up Roofing — White Bottom Layer of Roofs A, B & D Black Perimeter Counter Flashing Mastic — Roof C Built up Roofing — Black Tar Layers & White Bottom Layer of Roof C Black Curb Flashing Around Metal Roof Vent — Roof D

The asbestos inspector determined the white bottom layer of roofing containing asbestos is classified as friable. This is an abnormal condition on a roof which will require a 20-day notification to the Department of Labor and Industry (DOLI) prior to any abatement activities. A licensed asbestos abatement contractor must be used to remove this material using environmental controls appropriate for removing friable regulated asbestos. The abatement contractor should use extreme caution when removing this material to protect the interior of the building during the

COR, Fire Station # 19 Roof (Asbestos Sampling) Page 2 FEI Project Number: FEI-17AS590 11/14/2017

removal activities. The Commonwealth of Virginia also requires an asbestos project monitor be used onsite during abatement activities when removing friable asbestos. A complete summary of the materials sampled and the location of these materials can be found in the Sampled Material Data Summary Charts. Copies of the laboratory report, sample location drawing, and the inspector’s license have also been attached to this report. Should you have any questions or require additional information, please contact us at (804) 716-0560. Respectfully Submitted, FRANCE ENVIRONMENTAL, INC. Micheal D. Allshouse Michael E. Leonard Asbestos Inspector Project Manager Attachments

ASBESTOS SAMPLED MATERIAL DATA SUMMARY CHARTS

FEI Project Number: FEI-17AS590 11/14/2017

SAMPLED MATERIAL DATA SUMMARY CHART TESTED FOR: COR Department of Public Works PROJECT: COR, Fire Station # 19, Asbestos Roof Survey 900 East Broad Street, Suite G7 311 Maple Street, Richmond, Virginia Richmond, VA 23219 FEI PROJECT NO: FEI-17AS590 Attn: Mr. Rob Irby INSPECTORS: Micheal D. Allshouse INSPECTION DATE(S): 10/27/17 ROOFING MATERIALS All quantities are approximate

MS GROUP DESCRIPTION ASBESTOS

YES/NO LOCATION TOTAL QUANTITY CATEGORY CONDITION

A Black Built Up Roof (BUR) with Silver Coating (SC) over White Insulation

YES (White Ins.)

Roof A (Under White Modified Bitumen Membrane) 3,125 sq. ft. Friable Good

B Black Perimeter Counter Flashing Mastic NO Roof A N/A N/A N/A

C Silver Coating – Round Metal Roof Vent Pipe NO Roof A N/A N/A N/A

D Black Built Up Roof over Yellow Foam Insulation Over-White Insulation

YES (White Ins.)

Roof B (Under Black EPDM Membrane) 1,245 sq. ft. Friable Good

E Black Perimeter Counter Flashing Mastic NO Roof B 160 ln. ft. N/A N/A

F Black Built Up Roof Over White Insulation YES (Tar & Ins.)

Roof C (Under Black EPDM Membrane) 955 sq. ft. Friable Good

G Black Perimeter Counter Flashing Mastic YES Roof C 80 ln. ft. Category I Good

H Black Built Up Roof-Over White Insulation YES (White Ins.)

Roof D (Under Black EPDM Membrane) 675 sq. ft. Friable Good

I Black Perimeter Counter Flashing Mastic NO Roof D N/A N/A N/A

J Black Vent Curb Flashing YES Roof D 10 ln. ft. Category I Good

K Black Mastic - Round Metal Roof Vent Pipe NO Roof D N/A N/A N/A

L Black Perimeter Flashing Mastic NO Roof E N/A N/A N/A

M Black Roof Seam Mastic NO Roof E N/A N/A N/A

sq. ft. = Square Feet N/A = Not Applicable lf. Ft. = Linear Feet Note: FEI has intended to offer estimates of asbestos-containing materials (ACM’s) identified during this Asbestos Survey for budgetary estimating purposes. The locations and quantities presented are only inclusive of the area surveyed by the inspector. FEI does not guarantee and/or warranty the estimates and discourages the use of these estimates as the only source for submitting construction bids. Instead, the locations and estimated quantities of materials presented above should be field verified by the one preparing each bid.

ASBESTOS BULK SAMPLE SUMMARY SHEET

Bulk Sample Summary Sheet For

City of Richmond Fire Station # 19 — Roof Survey

311 Maple Street, Richmond, Virginia

MS Group

Sample Num.

Material Description

Sample Location

Analysis Result

A 1 Black Built Up Roof (BUR) with Silver Coating (SC) over White Insulation (WI)

Roof A (Under White Modified Bitumen Roof

Membrane)

BUR=N.A.D. SC=N.A.D.

WI=5% AMOSITE

A 2 Black Built Up Roof (BUR) with Silver Coating (SC) over White Insulation (WI)

Roof A (Under White Modified Bitumen Roof

Membrane)

BUR=N.A.D. SC=N.A.D. WI=NA/PS

B 3 Black Perimeter Counter Flashing Mastic Roof A N.A.D. B 4 Black Perimeter Counter Flashing Mastic Roof A N.A.D. C 5 Silver Coating –Round Metal Roof Vent Pipe Roof A N.A.D. C 6 Silver Coating –Round Metal Roof Vent Pipe Roof A N.A.D.

D 7 Black Built Up Roof (BUR) over Yellow Foam Insulation Over White Insulation (WI)

Roof B (Under Black EPDM Membrane)

BUR=N.A.D. FOAM=N.A.D.

WI=5% AMOSITE, 2% CHRY

D 8 Black Built Up Roof (BUR) over Yellow Foam Insulation Over White Insulation (WI)

Roof B (Under Black EPDM Membrane)

BUR=N.A.D. FOAM=N.A.D.

WI=NA/PS E 9 Black Perimeter Counter Flashing Mastic Roof B N.A.D. E 10 Black Perimeter Counter Flashing Mastic Roof B N.A.D.

F 11 Black Built Up Roof (BUR) over White Insulation (WI)

Roof C (Under Black EPDM Membrane)

BUR=N.A.D. WI=2% AMOSITE,

10% CHRY

F 12 Black Built Up Roof (BUR) over White Insulation (WI)

Roof C (Under Black EPDM Membrane)

BUR=2% CHRY WI=NA/PS

G 13 Black Perimeter Flashing Mastic Roof C N.A.D. G 14 Black Perimeter Flashing Mastic Roof C 3% CHRY

H 15 Black Built Up Roof (BUR) over White Insulation (WI)

Roof D (Under Black EPDM Membrane)

BUR=N.A.D. WI=2% AMOSITE,

10% CHRY

H 16 Black Built Up Roof (BUR) over White Insulation (WI)

Roof D (Under Black EPDM Membrane)

BUR=N.A.D. WI=NA/PS

I 17 Black Perimeter Counter Flashing Mastic Roof D N.A.D. I 18 Black Perimeter Counter Flashing Mastic Roof D N.A.D. J 19 Black Vent Curb Flashing Roof D 2% CHRY J 20 Black Vent Curb Flashing Roof D NA/PS K 21 Black Mastic - Round Metal Roof Vent Pipe Roof D N.A.D. K 22 Black Mastic - Round Metal Roof Vent Pipe Roof D N.A.D. L 23 Black Perimeter Counter Flashing Mastic Roof E N.A.D. L 24 Black Perimeter Counter Flashing Mastic Roof E N.A.D. M 25 Black Roof Seam Mastic Roof E N.A.D. M 26 Black Roof Seam Mastic Roof E N.A.D.

N.A.D. = No Asbestos Detected in Sample CHRY = Chrysotile Asbestos NA/PS = Not Analyzed/Positive Stop

ASBESTOS SAMPLE LOCATION DRAWING

PHOTOGRAPHS

Fire Station #19, Asbestos Roof SurveyRichmond, Virginia Photo Log Page 1 of 11

November 14, 2017FEI-17AS590

Photograph No. 1 Photograph No. 3Asbestos Containing Built-Up Roof - White (Friable) Bottom Layer--Roofs A, B & D

(MS Group A, D & H)Asbestos Containing Built-Up Roof - Black Tar & White (Friable) Layers - Roof C

(MS Group F)

Photograph No. 2 Photograph No. 4Asbestos Containing Black Counter Flashing Mastic - Roofs C

(MS Group G)Asbestos Containing Black Roof Vent Curb Flashing - Roof D

(MS Group J)

LABORATORY ANALYSIS REPORT (ASBESTOS BULK SAMPLES)

INSPECTOR’S LICENSE


METAL FABRICATIONS 055000 - 1

SECTION 055000 - METAL FABRICATIONS

PART 1 - GENERAL

1.1 SUMMARY


1. Metal ladders.

1.2 ACTION SUBMITTALS

A. Product Data: For the following:

1. Metal ladders.

PART 2 - PRODUCTS


A. Delegated Design: Engage a qualified professional engineer to design ladders.

B. Structural Performance of Aluminum Ladders: Aluminum ladders shall withstand the effects of loads and stresses within limits and under conditions specified in ANSI A14.3.

C. Thermal Movements: Allow for thermal movements from ambient and surface temperature changes acting on exterior metal fabrications by preventing buckling, opening of joints, overstressing of components, failure of connections, and other detrimental effects.

1. Temperature Change: 120 deg F (67 deg C), ambient; 180 deg F (100 deg C), material surfaces

2.2 METALS

A. Metal Surfaces, General: Provide materials with smooth, flat surfaces unless otherwise indicated. For metal fabrications exposed to view in the completed Work, provide materials without seam marks, roller marks, rolled trade names, or blemishes.

B. Aluminum Extrusions: ASTM B 221 (ASTM B 221M), Alloy 6063-T6.

C. Aluminum-Alloy Rolled Tread Plate: ASTM B 632/B 632M, Alloy 6061-T6.

D. Aluminum Castings: ASTM B 26/B 26M, Alloy 443.0-F.



2.3 FASTENERS

A. General: Unless otherwise indicated, provide Type 304 stainless-steel fasteners for exterior use and zinc-plated fasteners with coating complying with ASTM B 633 or ASTM F 1941 (ASTM F 1941M), Class Fe/Zn 5, at exterior walls. Select fasteners for type, grade, and class required.

1. Provide stainless-steel fasteners for fastening aluminum.

B. Post-Installed Anchors: chemical anchors.

1. Refer to SKS-02 at the end of this section.

2.4 MISCELLANEOUS MATERIALS

A. Bituminous Paint: Cold-applied asphalt emulsion complying with ASTM D 1187/D 1187M.

B. Nonshrink, Nonmetallic Grout: Factory-packaged, nonstaining, noncorrosive, nongaseous grout complying with ASTM C 1107/C 1107M. Provide grout specifically recommended by manufacturer for interior and exterior applications.

2.5 FABRICATION, GENERAL

A. Shop Assembly: Preassemble items in the shop to greatest extent possible. Use connections that maintain structural value of joined pieces.

B. Cut, drill, and punch metals cleanly and accurately. Remove burrs and ease edges. Remove sharp or rough areas on exposed surfaces.

C. Weld corners and seams continuously to comply with the following:

1. Use materials and methods that minimize distortion and develop strength and corrosion resistance of base metals.

2. Obtain fusion without undercut or overlap. 3. Remove welding flux immediately. 4. At exposed connections, finish exposed welds and surfaces smooth and

blended.

D. Form exposed connections with hairline joints, flush and smooth, using concealed fasteners or welds where possible. Locate joints where least conspicuous.

E. Fabricate seams and other connections that are exposed to weather in a manner to exclude water. Provide weep holes where water may accumulate.

2.6 MISCELLANEOUS FRAMING AND SUPPORTS

A. General: Provide steel framing and supports not specified in other Sections as needed to complete the Work.



B. Fabricate units from shapes, plates, and bars of welded construction unless otherwise indicated. Fabricate to sizes, shapes, and profiles indicated and as necessary to receive adjacent construction.

2.7 METAL LADDERS

A. General:

1. Comply with ANSI A14.3.

B. Aluminum Ladders:

1. ALACO Ladder Co. 2. Approved equal 3. Space siderails 20 inches apart unless otherwise indicated. 4. Siderails: Continuous extruded-aluminum channels or tubes, not less than 2-1/2

inches (64 mm) deep, 3/4 inch (19 mm) wide, and 1/8 inch (3.2 mm) thick. 5. Rungs: Extruded-aluminum tubes, not less than 1-1/8 inch deep and not less

than 1/8 inch (3.2 mm) thick, with ribbed tread surfaces. 6. Security Doors - Fabricated from 0.188" (4.8 mm) thick aluminum sheets, with

securing piano hinges and lock hasps.

2.8 FINISHES, GENERAL

A. Finish metal fabrications after assembly.

PART 3 - EXECUTION

3.1 INSTALLATION, GENERAL

A. Cutting, Fitting, and Placement: Perform cutting, drilling, and fitting required for installing metal fabrications. Set metal fabrications accurately in location, alignment, and elevation; with edges and surfaces level, plumb, true, and free of rack; and measured from established lines and levels.

B. Fit exposed connections accurately together to form hairline joints. Weld connections that are not to be left as exposed joints but cannot be shop welded because of shipping size limitations. Do not weld, cut, or abrade surfaces of exterior units that have been hot-dip galvanized after fabrication and are for bolted or screwed field connections.

C. Field Welding: Comply with the following requirements:

1. Use materials and methods that minimize distortion and develop strength and corrosion resistance of base metals.

2. Obtain fusion without undercut or overlap. 3. Remove welding flux immediately.



4. At exposed connections, finish exposed welds and surfaces smooth and blended so no roughness shows after finishing and contour of welded surface matches that of adjacent surface.

D. Fastening to In-Place Construction: Provide anchorage devices and fasteners where metal fabrications are required to be fastened to in-place construction.

E. Provide temporary bracing or anchors in formwork for items that are to be built into concrete, masonry, or similar construction.

3.2 INSTALLING METAL BOLLARDS

A. Fill metal-capped bollards solidly with concrete and allow concrete to cure seven days before installing.

B. Anchor bollards to existing construction with [expansion anchors] [anchor bolts] [through bolts]. Provide four 3/4-inch (19-mm) bolts at each bollard unless otherwise indicated.

C. Anchor bollards in concrete [with pipe sleeves preset and anchored into concrete] [in formed or core-drilled holes]. Fill annular space around bollard solidly with nonshrink grout.

D. Anchor bollards in place with concrete footings. Place concrete and vibrate or tamp for consolidation. Support and brace bollards in position until concrete has cured.

E. Fill bollards solidly with concrete, mounding top surface to shed water.





PREPARATION FOR REROOFING 070150.19 - 1

SECTION 070150.19 - PREPARATION FOR REROOFING

PART 1 - GENERAL

1.1 SUMMARY

A. Section Includes: 1. Partial tear-off of roof areas indicated on Drawings. 2. Re-cover preparation of roof areas indicated on Drawings. 3. Removal of flashings and counterflashings.


A. Preliminary Roofing Conference: Before starting removal Work, conduct conference at Project site.


A. Photographs or Videotape: Show existing conditions of adjoining construction and site improvements, including exterior and interior finish surfaces, that might be misconstrued as having been damaged by reroofing operations.

1. Submit before Work begins.


A. Installer Qualifications: Approved by warrantor of existing roofing system to work on existing roofing.

1.5 FIELD CONDITIONS

A. Existing Roofing System: As indicated on Drawings.

B. Owner will occupy portions of building immediately below reroofing area.

1. Conduct reroofing so Owner's operations are not disrupted. 2. Provide Owner with not less than 72 hours' written notice of activities that may

affect Owner's operations. 3. Coordinate work activities daily with Owner so Owner has adequate advance

notice to place protective dust and water-leakage covers over sensitive equipment and furnishings, shut down HVAC and fire-alarm or -detection equipment if needed, and evacuate occupants from below work area.

4. Before working over structurally impaired areas of deck, notify Owner to evacuate occupants from below affected area.



a. Verify that occupants below work area have been evacuated before proceeding with work over impaired deck area.

C. Protect building to be reroofed, adjacent buildings, walkways, site improvements, exterior plantings, and landscaping from damage or soiling from reroofing operations.

D. Maintain access to existing walkways, corridors, and other adjacent occupied or used facilities.

E. Conditions existing at time of inspection for bidding will be maintained by Owner as far as practical.

F. Limit construction loads on existing roof areas to remain, and existing roof areas scheduled to be reroofed and uniformly distribut loads.

G. Weather Limitations: Proceed with reroofing preparation only when existing and forecasted weather conditions permit Work to proceed without water entering existing roofing system or building.

1. Remove only as much roofing in one day as can be made watertight in the same day.

1.6 WARRANTY

A. Existing Warranties: No existing roofing warranties on areas to be re roofed.

PART 2 - PRODUCTS

2.1 AUXILIARY REROOFING MATERIALS

A. General: Use auxiliary reroofing preparation materials recommended by roofing system manufacturer for intended use and compatible with components of existing and new roofing system.

PART 3 - EXECUTION

3.1 PREPARATION

A. Seal or isolate windows that may be exposed to airborne substances created in removal of existing materials.

B. Shut off rooftop utilities and service piping before beginning the Work.

C. Test existing roof drains to verify that they are not blocked or restricted.

1. Immediately notify Owner of any blockages or restrictions.



D. Coordinate with Owner to shut down air-intake equipment in the vicinity of the Work.

1. Cover air-intake louvers before proceeding with reroofing work that could affect indoor air quality or activate smoke detectors in the ductwork.

E. During removal operations, have sufficient and suitable materials on-site to facilitate rapid installation of temporary protection in the event of unexpected rain.

F. Maintain roof drains in functioning condition to ensure roof drainage at end of each workday.

1. Prevent debris from entering or blocking roof drains and conductors.

a. Use roof-drain plugs specifically designed for this purpose. b. Remove roof-drain plugs at end of each workday, when no work is taking

place, or when rain is forecast.

2. If roof drains are temporarily blocked or unserviceable due to roofing system removal or partial installation of new roofing system, provide alternative drainage method to remove water and eliminate ponding.

a. Do not permit water to enter into or under existing roofing system components that are to remain.

3.2 ROOF TEAR-OFF

A. Notify Owner each day of extent of roof tear-off proposed for that day.

B. Lower removed roofing materials to ground and onto lower roof levels, using dust-tight chutes or other acceptable means of removing materials from roof areas.

C. Partial Roof Tear-off: Where indicated on Drawings, remove existing roofing down to lower layer of existing roofing and immediately check for presence of moisture.

1. Engage a qualified testing agency to perform the following test:

2. Survey exposed substrate that is to remain using infrared color thermography according to ASTM C 1153.

a. Prepare survey report of initial scan indicating locations of entrapped moisture, if any, and area calculations of locations of entrapped moisture.

3. Survey exposed substrate that is to remain using electrical capacitance/impedance testing according to ASTM D 7954/D 7954M.

a. Prepare survey report indicating locations of entrapped moisture, if any, and area calculations of locations of entrapped moisture.

4. Remove wet or damp materials below existing roofing and above deck as directed by Architect.



a. Removal is paid for by adjusting the Contract Sum according to unit prices included in the Contract Documents.

5. Inspect wood blocking, curbs, and nailers for deterioration and damage.

6. Bitumen and felts that are firmly bonded to concrete decks are permitted to remain if felts are dry.

a. Remove unadhered bitumen, unadhered felts, and wet felts.

3.3 DECK PREPARATION

A. Inspect deck after tear-off of roofing system.

B. Existing roof deck is a poured gypsum roof deck over a gypsum board substrate.

C. If an area of the deck surface is unsuitable for receiving new roofing or if structural integrity of deck is suspect, immediately notify Architect.

1. Refer to detail SKS-01 at the end of this sectionfor proposed typical roof repair detail.

D. Provide additional deck securement as indicated on Drawings.

E. Replace steel deck as indicated on Drawings.

3.4 ROOF RE-COVER PREPARATION

A. Remove blisters, ridges, buckles, and other substrate irregularities from existing roofing that inhibit new recover boards from conforming to substrate.

1. Broom clean existing substrate. 2. Coordinate with Owner's inspector to schedule times for tests and inspections. 3. Verify that existing substrate is dry before proceeding with installation.

a. Spot check substrates with an electrical capacitance moisture-detection meter.

4. Remove materials that are wet and damp.

a. Removal will be paid for by adjusting the Contract Sum according to unit prices included in the Contract Documents.

3.5 BASE FLASHING REMOVAL

A. Remove existing base flashings where indicated.

1. Clean substrates of contaminants, such as asphalt, sheet materials, dirt, and debris.



B. Do not damage metal counterflashings that are to remain.

1. Replace metal counterflashings damaged during removal with counterflashings of same metal, weight or thickness, and finish as existing.





END OF SECTION 070150.19


STYRENE-BUTADIENE-STYRENE (SBS) MODIFIED BITUMINOUS MEMBRANE ROOFING

075216 - 1

SECTION 075216 - STYRENE-BUTADIENE-STYRENE (SBS) MODIFIED BITUMINOUS MEMBRANE ROOFING

PART 1 - GENERAL

1.1 SUMMARY


1. Styrene-butadiene-styrene (SBS)-modified bituminous membrane roofing. 2. Roof insulation. 3. Cover board. 4. Walkways.


A. Preinstallation Conference: Conduct conference at Project site.


A. Product Data: For each type of product.

1. For insulation and roof system component fasteners, include copy of FM Approvals' RoofNav listing.

B. Shop Drawings: Include plans, sections, details, and attachments to other work, including the following:

1. Layout and thickness of insulation. 2. Base flashings and membrane terminations. 3. Flashing details at penetrations. 4. Tapered insulation, including slopes. 5. Crickets, saddles, and tapered edge strips, including slopes.

C. Wind Uplift Resistance Submittal: For roofing system indicating compliance with wind uplift performance requirements.


A. Manufacturer Certificates:

1. Performance Requirement Certificate: Signed by roof membrane manufacturer certifying that roofing system complies with requirements specified in "Performance Requirements" Article.

a. Submit evidence of complying with performance requirements.



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2. Special Warranty Certificate: Signed by roof membrane manufacturer, certifying that all materials supplied under this Section are acceptable for special warranty.

B. Product Test Reports: For roof membrane and insulation, tests performed by a qualified testing agency, indicating compliance with specified requirements.

C. Research reports.

D. Field Test Reports:

1. Concrete internal relative humidity test reports. 2. Fastener-pullout test results and manufacturer's revised requirements for

fastener patterns.

E. Field quality-control reports.

F. Sample warranties.


A. Maintenance data.

B. Certified statement from existing roof membrane manufacturer stating that existing roof warranty has not been affected by Work performed under this Section.


A. Installer Qualifications: A qualified firm that is approved, authorized, or licensed by roofing system manufacturer to install manufacturer's product and that is eligible to receive manufacturer's special warranty.

B. Manufacturer Qualifications: Roofing system manufacturer shall have a minimum of 30 years experience in manufacturing modified bitumen roofing products in the United States and be ISO 9001 certified.

1. SBS and SIS modified cap sheet must meet FM test 4470. This test must have approvals dating back at least two (2) years. This test cannot have new approvals as it is a continuing monitor of manufacturing quality and field performance. This test must be performed using the deck, insulation and modified built up roofing system as specified. Similar applications which are not exact will not be considered.

2. Manufacturer of SBS and SIS (Styrene Butadiene Styrene/Styrene Isporene Styrene) must meet the following criteria:

a. Must have been manufacturing the exact specified modified cap sheet for a period not less than five (5) years, in the same configuration specified. Invoices proving polymer purchases may be requested by the Owner for verification purposes.



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3. Manufacturer must be currently certified by the International Organization for Standardization as meeting the minimum quality assurance standards outlined in the I.S.O. 9001 Program, and shall be registered in the current listing of I.S.O. certified manufacturers.

4. Manufacturer, at no cost to the Owner, must make annual inspections on the finished roofing areas for the duration of the warranty period and provide to the Owner any maintenance recommendations.

5. Manufacturer must inspect the job on a daily basis and submit weekly reports to the Owner/Architect to insure proper installation procedures are being followed in accordance with the written specification.

C. Installer Qualifications: Installer (Roofer) shall be specializing in modified bituminous roof application with minimum 5 years experience and who is certified by the roofing system manufacturer as qualified to install manufacturer’s roofing materials.

D. It is the intent of this specification to provide a roof system with an external fire rating. The descriptions given below are general descriptions. The insulation, recovery board, and other components shall be required by the membrane manufacturer to provide a Class A fire resistance rating.

E. Installer’s Field Supervision: Require Installer to maintain a full-time Supervisor/Foreman on job site during all phases of modified bituminous sheet roofing work and at any time roofing work is in progress, proper supervision of

1.7 WARRANTY

A. Special Warranty: Manufacturer agrees to repair or replace components of roofing system that fail in materials or workmanship within specified warranty period.

1. Manufacture must provide Owner a 30 year NDL warranty including the system materials, metal components, metal wall panels, metal edge metal coping and workmanship for the life of the warranty period.

PART 2 - PRODUCTS


A. Accelerated Weathering: Roof membrane shall withstand 2000 hours of exposure when tested according to ASTM G 152, ASTM G 154, or ASTM G 155.

B. Impact Resistance: Roof membrane shall resist impact damage when tested according to ASTM D 3746/D 3746M, ASTM D 4272/D 4272M, or the "Resistance to Foot Traffic Test" in FM Approvals 4470.

C. Wind Uplift Resistance: Design roofing system to resist the following wind uplift pressures when tested according to FM Approvals 4474, UL 580, or UL 1897:

1. Zone 1 (Roof Area Field): 15.5 lbf/sq. ft.



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2. Zone 2 (Roof Area Perimeter): 26.1 lbf/sq. ft.

a. Location: From roof edge to 5 feet inside roof edge.

3. Zone 3 (Roof Area Corners): 39.3 lbf/sq. ft.

a. Location: 5 feet in each direction from each building corner.

D. Exterior Fire-Test Exposure: ASTM E 108 or UL 790, Class A; for application and roof slopes indicated; testing by a qualified testing agency.

1. Identify products with appropriate markings of applicable testing agency.

2.2 MANUFACTURERS

A. Acceptable Manufacturer: Garland Company, Inc. (The); 3800 E. 91st St., Cleveland, OH 44105. ASD. Toll Free: 800-321-9336. Phone: 216-641-7500. Fax: 216-641-0633. Web Site: www.garlandco.com.

B. Provide complete roofing system for all indicated roofing conditions.

C. The Products specified are intended and the Standard of Quality for the products required for this project. If other products are proposed the bidder must disclose in the bid the manufacturer and the products that they intend to use on the Project. If no manufacturer and products are listed, the bid may be accepted only with the use of products specified. 1. Bidder will not be allowed to change materials after the bid opening date. 2. If alternate products are included in the bid, the products must be equal to or

exceed the products specified. Supporting technical data shall be submitted to the Architect/ Owner for approval prior to acceptance.

3. In making a request for substitution, the Bidder/Roofing Contractor represents that it has: a. Personally investigated the proposed product or method, and determined

that it is equal or superior in all respects to that specified. b. Will provide the same guarantee for substitution as for the product and

method specified. c. Will coordinate installation of accepted substitution in work, making such

changes as may be required for work to be completed in all respects. d. Will waive all claims for additional cost related to substitution, which

consequently become apparent. e. Cost data is complete and includes all related cost under his/her contract or

other contracts, which may be affected by the substitution. f. Will reimburse the Owner for all redesign cost by the Architect for

accommodation of the substitution. 4. Architect/ Owner reserves the right to be the final authority on the acceptance or

rejection of any or all bids, proposed alternate roofing systems or materials that has met ALL specified requirement criteria.



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2.3 BASE SHEET MATERIALS

A. SBS-Modified Bitumen Polyester Mat Base Sheet: ASTM D 6147 SBS-modified asphalt sheet, reinforced with polyester fabric, smooth surfaced, suitable for cold adhesive application method.

1. Garland Company, Inc.: Millennium Base

2.4 STYRENE-BUTADIENE-STYRENE (SBS) MODIFIED BITUMINOUS CAP SHEET

A. Granule-Surfaced Roofing Cap Sheet: ASTM D ASTM D 6147 Type I, Grade G, SBS-modified asphalt sheet, reinforced with polyester fabric, suitable for cold adhesive application method.

1. Garland Company, Inc.: Millennium Mineral FR 2. Granule Color: Gray

2.5 BASE FLASHING SHEET MATERIALS

A. Backer Sheet: ASTM D 6164/D 6164M, Type I or II, Grade S, SBS-modified asphalt sheet, reinforced with polyester fabric, smooth surfaced, suitable for application method specified.

B. Granule-Surfaced Flashing Sheet: ASTM D 6164/D 6164M, Type I or II, Grade G, SBS-modified asphalt sheet, reinforced with polyester fabric, granule surfaced, suitable for application method specified, and as follows:

1. Granule Color: Match Cap Sheet

C. Glass-Fiber Fabric: Woven glass-fiber cloth, treated with asphalt, complying with ASTM D 1668/D 1668M, Type I.

D. Liquid Flashing System: Roof membrane manufacturer's standard one- or two-part moisture curing resin with low solvent content, consisting of a primer, flashing cement, and scrim.

2.6 AUXILIARY ROOFING MATERIALS

A. General: Auxiliary materials recommended by roofing system manufacturer for intended use and compatible with other roofing components.

1. Adhesives and Sealants: Comply with VOC limits of authorities having jurisdiction.

B. Metal Termination Bars: Manufacturer's standard, predrilled stainless-steel or aluminum bars, approximately 1 by 1/8 inch (25 by 3 mm) thick; with anchors.



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C. Cold-Applied Polymer-Modified Asphalt Adhesive: Roof membrane manufacturer’s standard solvent-and asbestos-free, cold-applied adhesive, specially formulated for compatibility and use with interply sheets.

1. Garland Company, Inc.: Black-Knight/Black-Stallion Cold

D. Asphalt Roofing Cement: ASTM D 4586/D 4586M, asbestos free, of consistency required by roofing system manufacturer for application.

E. Mastic Sealant: Polyisobutylene, plain or modified bitumen; nonhardening, nonmigrating, nonskinning, and nondrying.

F. Roofing Granules: Ceramic-coated] [Slate] roofing granules, No. 11 screen size with 100 percent passing No. 8 (2.36-mm) sieve and 98 percent of mass retained on No. 40 (0.425-mm) sieve; color to match roof membrane.

G. Miscellaneous Accessories: Provide those recommended by roofing system manufacturer.

2.7 ROOF INSULATION

A. Polyisocyanurate Board Insulation: ASTM C 1289, Type II, Class 1, Grade 2, felt or glass-fiber mat facer on both major surfaces. 1. Size: 48 by 48 inches (1219 by 1219 mm).

B. Tapered Insulation: Provide factory-tapered insulation boards.

1. Material: Match roof insulation. 2. Minimum Thickness: 1/4 inch (6 mm). 3. Slope:

a. Roof Field: 1/8 inch per foot (1:96) unless otherwise indicated on Drawings. b. Saddles and Crickets: 1/4 inch per foot (1:48) unless otherwise indicated

on Drawings.

2.8 INSULATION ACCESSORIES

A. Insulation Adhesive: Insulation manufacturer's recommended adhesive formulated to attach roof insulation to substrate or to another insulation layer as follows:

1. Garland Company, Inc.: Insul-Lock HR

B. Insulation Cant Strips: ASTM C 208, Type II, Grade 1, cellulosic-fiber insulation board.

C. Tapered Edge Strips: ASTM C 208, Type II, Grade 1, cellulosic-fiber insulation board.

D. Cover Board: ASTM C 1177/C 1177M, glass-mat, water-resistant gypsum board or ASTM C 1278/C 1278M, fiber-reinforced gypsum board. 1. Thickness: 1/2 inch (13 mm).



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2. Surface Finish: Unprimed.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Examine substrates, areas, and conditions, with Installer present, for compliance with requirements and other conditions affecting performance of the Work.

3.2 PREPARATION

A. Refer to Section: 070150.19 - Preparation for Reroofing

3.3 ROOFING INSTALLATION, GENERAL

A. Install roofing system according to roofing system manufacturer's written instructions, FM Approvals' RoofNav assembly requirements, and FM Global Property Loss Prevention Data Sheet 1-29.

B. Complete terminations and base flashings, and provide temporary seals to prevent water from entering completed sections of roofing system at the end of the workday or when rain is forecast.

1. Remove and discard temporary seals before beginning work on adjoining roofing.

C. Install roof membrane and auxiliary materials to tie in to existing roofing to maintain weathertightness of transition.

D. Substrate-Joint Penetrations: Prevent roofing asphalt and adhesives from penetrating substrate joints, entering building, or damaging roofing system components or adjacent building construction.

3.4 INSULATION INSTALLATION

A. Coordinate installing roofing system components, so insulation is not exposed to precipitation or left exposed at the end of the workday.

B. Comply with roofing system and insulation manufacturer's written instructions for installing roof insulation.

C. Insulation Cant Strips: Install and secure preformed 45-degree insulation cant strips at junctures of roofing system with vertical surfaces or angle changes greater than 45 degrees.

D. Installation Over Existing Roofing:



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1. Install base layer of insulation with joints staggered not less than 24 inches (600 mm) in adjacent rows. a. Where installing composite and noncomposite insulation in two or more

layers, install noncomposite board insulation for bottom layer and intermediate layers, if applicable, and install composite board insulation for top layer.

b. Trim insulation neatly to fit around penetrations and projections, and to fit tight to intersecting sloping roof decks.

c. Make joints between adjacent insulation boards not more than 1/4 inch (6 mm) in width.

d. At internal roof drains, slope insulation to create a square drain sump, with each side equal to the diameter of the drain bowl plus 24 inches (600 mm).

1) Trim insulation, so that water flow is unrestricted.

e. Fill gaps exceeding 1/4 inch (6 mm) with insulation. f. Cut and fit insulation within 1/4 inch (6 mm) of nail projections and

penetrations.

2. Install tapered insulation, with joints of each layer offset not less than 12 inches (300 mm) from previous layer of insulation.

a. Staggered end joints within each layer not less than 24 inches (600 mm) in adjacent rows.

b. Install with long joints continuous and with end joints staggered not less than 12 inches (300 mm) in adjacent rows.

c. Trim insulation neatly to fit around penetrations and projections, and to fit tight to intersecting sloping roof decks.

d. Make joints between adjacent insulation boards not more than 1/4 inch (6 mm) in width.

e. At internal roof drains, slope insulation to create a square drain sump, with each side equal to the diameter of the drain bowl plus 24 inches (600 mm).

f. Trim insulation, so that water flow is unrestricted. g. Fill gaps exceeding 1/4 inch (6 mm) with insulation. h. Cut and fit insulation within 1/4 inch (6 mm) of nailers, projections, and

penetrations. i. Adhere each layer of insulation to substrate using adhesive according to

FM Approvals' RoofNav assembly requirements and FM Global Property Loss Prevention Data Sheet 1-29 for specified Windstorm Resistance Classification, as follows: 1) Set each layer of insulation in ribbons of bead-applied insulation

adhesive, firmly pressing and maintaining insulation in place.

3.5 INSTALLATION OF COVER BOARDS

A. Install cover boards over insulation with long joints in continuous straight lines, with end joints staggered between rows. Offset joints of insulation below a minimum of 6 inches (150 mm) in each direction.



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1. Trim cover board neatly to fit around penetrations and projections, and to fit tight to intersecting sloping roof decks.

2. At internal roof drains, conform to slope of drain sump.

a. Trim cover board, so that water flow is unrestricted.

3. Cut and fit cover board tight to nailers, projections, and penetrations. 4. Adhere cover board to substrate using adhesive according to FM Approvals'

RoofNav assembly requirements and FM Global Property Loss Prevention Data Sheet 1-29 for

a. Set cover board in a solid mopping of hot roofing asphalt, applied within plus or minus 25 deg F (14 deg C) of equiviscous temperature.

b. Set cover board in ribbons of bead-applied insulation adhesive, firmly pressing and maintaining insulation in place.

c. Set cover board in a uniform coverage of full-spread insulation adhesive, firmly pressing and maintaining insulation in place.

3.6 ROOFING MEMBRANE INSTALLATION, GENERAL

A. Install roofing system according to roofing system manufacturer's written instructions and applicable recommendations in ARMA/NRCA's "Quality Control Guidelines for the Application of Polymer Modified Bitumen Roofing."

B. Start installation of roofing in presence of roofing system manufacturer's technical personnel.

C. Coordinate installation of roofing system so insulation and other components of the roofing system not permanently exposed are not subjected to precipitation or left uncovered at the end of the workday or when rain is forecast.

1. Provide tie-offs at end of each day's work to cover exposed roofing sheets and insulation with a course of coated felt set in roofing cement or hot roofing asphalt, with joints and edges sealed.

2. Complete terminations and base flashings, and provide temporary seals to prevent water from entering completed sections of roofing system.

3. Remove and discard temporary seals before beginning work on adjoining roofing.

3.7 BASE SHEET INSTALLATION

A. Before installing, unroll base sheet, cut into workable lengths, and allow to lie flat for a time period recommended by manufacturer for the ambient temperature.

B. Installation of SBS-Modified Bitumen Polyester and Fiberglass-Mat Base Sheet:

1. Install base sheet according to roofing manufacturer's written instructions, starting at low point of roofing system.

2. Extend roofing sheets over and terminate above cants. 3. Install base sheet in a shingle fashion.



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4. Adhere to substrate in a uniform coating of cold-applied adhesive. 5. Install base sheet without wrinkles, rears, and free from air pockets. 6. Laps: Accurately align roofing sheets, without stretching, and maintain uniform

side and end laps.

a. Lap side laps as recommended by roof membrane manufacturer but not less than 3 inches (76 mm).

b. Lap end laps as recommended by roof membrane manufacturer but not less than 12 inches (300 mm).

c. Stagger end laps not less than 18 inches (450 mm). d. Completely bond and seal laps, leaving no voids. e. Roll laps with a 20-pound (9-kg) roller.

7. Repair tears and voids in laps and lapped seams not completely sealed. 8. Apply pressure to the body of the base sheet according to manufacturer's

instructions, to remove air pockets and to result in complete adhesion of base sheet to substrate.

3.8 SBS-MODIFIED BITUMINOUS CAP SHEET INSTALLATION

A. Before installing, unroll cap sheet, cut into workable lengths, and allow to lie flat for a time period recommended by manufacturer for the ambient temperature at which cap sheet will be installed.

B. Install modified bituminous roofing cap sheet according to roofing manufacturer's written instructions, starting at low point of roofing system.

1. Extend cap sheet over and terminate above cants. 2. Install cap sheet in a shingle fashion. 3. Install cap sheet as follows:

a. Adhere to substrate in a solid mopping of hot roofing asphalt applied at asphalt temperature recommended by cap sheet manufacturer.

b. Adhere to substrate in cold-applied adhesive. c. Torch apply to substrate.

1) Perform torch application according to NFPA 241, including two-hour fire watch after torches have been extinguished.

4. Install cap sheet without wrinkles or tears, and free from air pockets. 5. Install cap sheet, so side and end laps shed water.

C. Laps: Accurately align roofing sheets, without stretching, and maintain uniform side and end laps.

1. Lap side laps as recommended by roof membrane manufacturer but not less than 3 inches (76 mm).

2. Lap end laps as recommended by roof membrane manufacturer but not less than 12 inches (300 mm).

3. Stagger end laps not less than 18 inches (450 mm).



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4. Completely bond and seal laps, leaving no voids. 5. Roll laps with a 20-pound (9-kg) roller. 6. Repair tears and voids in laps and lapped seams not completely sealed.

D. Apply pressure to the body of the cap sheet according to manufacturer's instructions, to remove air pockets and to result in complete adhesion of base sheet to substrate.

3.9 FLASHING AND STRIPPING INSTALLATION

A. Install base flashing over cant strips and other sloped and vertical surfaces, at roof edges, and at penetrations through roof, and secure to substrates according to roofing system manufacturer's written instructions and as follows:

1. Prime substrates with asphalt primer if required by roofing system manufacturer. 2. Backer Sheet Application:

a. Adhere backer sheet over roofing membrane at cants in cold-applied adhesive.

b. Seal all laps. 3. Flashing Sheet Application: Adhere flashing sheet to substrate in cold-applied

adhesive at rate required by roofing system manufacturer. 4. Flashing Sheet Application: Adhere flashing sheet to substrate in asphalt roofing

cement at rate required by roofing system manufacturer. 5. Flashing Sheet Application: Torch apply flashing sheet to substrate.

a. Perform torch application according to NFPA 241, including two-hour fire watch after torches have been extinguished.

B. Extend base flashing up walls or parapets a minimum of 8 inches (200 mm) above roofing membrane and 4 inches (100 mm) onto field of roofing membrane.

C. Install liquid flashing system according to manufacturer's recommendations.

1. Extend liquid flashing not less than 3 inches (76 mm) in all directions from edges of item being flashed.

2. Embed granules, matching color of roof membrane, into wet compound.

D. Install roofing cap-sheet stripping where metal flanges and edgings are set on roofing according to roofing system manufacturer's written instructions.

3.10 PROTECTING AND CLEANING

A. Protect roofing system from damage and wear during remainder of construction period.

1. When remaining construction does not affect or endanger roofing, inspect roofing system for deterioration and damage, describing its nature and extent in a written report, with copies to Architect and Owner.

B. Correct deficiencies in or remove roofing system that does not comply with requirements, repair substrates, and repair or reinstall roofing system to a condition



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free of damage and deterioration at time of Substantial Completion and according to warranty requirements.

C. Clean overspray and spillage from adjacent construction using cleaning agents and procedures recommended by manufacturer of affected construction.



ROOF SPECIALTIES 077100 - 1

SECTION 077100 - ROOF SPECIALTIES

PART 1 - GENERAL

1.1 SUMMARY


1. Copings. 2. Roof-edge drainage systems.

B. Preinstallation Conference: Concurrent with Roofing Pre-construction Meeting.


A. Product Data: For each type of product.

B. Shop Drawings: For roof specialties.

1. Include plans, elevations, expansion-joint locations, keyed details, and attachments to other work. Distinguish between plant- and field-assembled work.

C. Samples: For each type of roof specialty and for each color and texture specified.


A. Product Test Reports: For tests performed by a qualified testing agency.

B. Sample warranty.


A. Maintenance Data: For roofing specialties to include in maintenance manuals.


A. Manufacturer Qualifications: A qualified manufacturer offering products meeting requirements that are SPRI ES-1 tested to specified design pressure.

1.6 WARRANTY

A. Roofing-System Warranty: Roof specialties are included in warranty provisions in 075216 SF - Styrene-Butadiene-Styrene (SBS) Modified Bituminous Membrane Roofing



B. Special Warranty on Painted Finishes: Manufacturer agrees to repair finish or replace roof specialties that show evidence of deterioration of factory-applied finishes within specified warranty period.

1. Fluoropolymer Finish: Deterioration includes, but is not limited to, the following:

a. Color fading more than 5 Hunter units when tested according to ASTM D 2244.

b. Chalking in excess of a No. 8 rating when tested according to ASTM D 4214.

c. Cracking, checking, peeling, or failure of paint to adhere to bare metal.

2. Finish Warranty Period: 20 years from date of Substantial Completion.

PART 2 - PRODUCTS


A. SPRI Wind Design Standard: Manufacture and install copings tested according to SPRI ES-1 and capable of resisting the following design pressures:

1. Design Pressure: As indicated in Section 07516.

B. Thermal Movements: Allow for thermal movements from ambient and surface temperature changes to prevent buckling, opening of joints, hole elongation, overstressing of components, failure of joint sealants, failure of connections, and other detrimental effects. Provide clips that resist rotation and avoid shear stress as a result of thermal movements. Base calculations on surface temperatures of materials due to both solar heat gain and nighttime-sky heat loss.

1. Temperature Change (Range): 120 deg F (67 deg C), ambient; 180 deg F (100 deg C, material surfaces.

2.2 COPINGS

A. Metal Copings: Manufactured coping system consisting of metal coping cap in section lengths not exceeding 12 feet (3.6 m), concealed anchorage; with corner units, end cap units, and concealed splice plates with finish matching coping caps.

1. Metallic-Coated Steel Sheet Coping Caps: Zinc-coated (galvanized) steel, nominal thickness as required to meet performance requirements.

a. Surface: Smooth, flat finish. b. Finish: Two-coat fluoropolymer. c. Color: As selected by Architect from manufacturer's full range.



2.3 ROOF-EDGE DRAINAGE SYSTEMS

A. Downspouts: Corrugated rectangular complete with machine-crimped elbows, manufactured from the following exposed metal. Furnish with metal hangers, from same material as downspouts, and anchors.

1. Zinc-Coated Steel: Nominal 0.028-inch (0.71-mm)

2.4 MATERIALS

A. Zinc-Coated (Galvanized) Steel Sheet: ASTM A 653/A 653M, G90 (Z275) coating designation.

2.5 MISCELLANEOUS MATERIALS

A. Fasteners: Manufacturer's recommended fasteners, suitable for application and designed to meet performance requirements. Furnish the following unless otherwise indicated:

1. Exposed Penetrating Fasteners: Gasketed screws with hex washer heads matching color of sheet metal.

2. Fasteners for Zinc-Coated (Galvanized) Steel Sheet: Series 300 stainless steel or hot-dip zinc-coated steel according to ASTM A 153/A 153M or ASTM F 2329.

B. Elastomeric Sealant: ASTM C 920, elastomeric silicone polymer sealant of type, grade, class, and use classifications required by roofing-specialty manufacturer for each application.

C. Butyl Sealant: ASTM C 1311, single-component, solvent-release butyl rubber sealant; polyisobutylene plasticized; heavy bodied for hooked-type joints with limited movement.

D. Bituminous Coating: Cold-applied asphalt emulsion complying with ASTM D 1187/D 1187M.

2.6 FINISHES

A. Coil-Coated Galvanized-Steel Sheet Finishes:

1. High-Performance Organic Finish: Prepare, pretreat, and apply coating to exposed metal surfaces to comply with ASTM A 755/A 755M and coating and resin manufacturers' written instructions.

a. Two-Coat Fluoropolymer: AAMA 621. Fluoropolymer finish containing not less than 70 percent PVDF resin by weight in color coat.



PART 3 - EXECUTION

3.1 INSTALLATION, GENERAL

A. General: Install roof specialties according to manufacturer's written instructions. Anchor roof specialties securely in place, with provisions for thermal and structural movement. Use fasteners, solder, protective coatings, separators, underlayments, sealants, and other miscellaneous items as required to complete roof-specialty systems.

1. Install roof specialties level, plumb, true to line and elevation; with limited oil-canning and without warping, jogs in alignment, buckling, or tool marks.

2. Provide uniform, neat seams with minimum exposure of solder and sealant. 3. Install roof specialties to fit substrates and to result in weathertight performance.

Verify shapes and dimensions of surfaces to be covered before manufacture. 4. Torch cutting of roof specialties is not permitted. 5. Do not use graphite pencils to mark metal surfaces.

B. Metal Protection: Protect metals against galvanic action by separating dissimilar metals from contact with each other or with corrosive substrates by painting contact surfaces with bituminous coating or by other permanent separation as recommended by manufacturer.

1. Coat concealed side of roof specialties with bituminous coating where in contact with wood, ferrous metal, or cementitious construction.

2. Bed flanges in thick coat of asphalt roofing cement where required by manufacturers of roof specialties for waterproof performance.

C. Expansion Provisions: Allow for thermal expansion of exposed roof specialties.

1. Space movement joints at a maximum of 12 feet (3.6 m) with no joints within 18 inches (450 mm) of corners or intersections unless otherwise indicated on Drawings.

2. When ambient temperature at time of installation is between 40 and 70 deg F (4 and 21 deg C), set joint members for 50 percent movement each way. Adjust setting proportionately for installation at higher ambient temperatures.

D. Fastener Sizes: Use fasteners of sizes that penetrate wood blocking or sheathing not less than 1-1/4 inches (32 mm) for nails and not less than 3/4 inch (19 mm) for wood screws.

E. Seal concealed joints with butyl sealant as required by roofing-specialty manufacturer.

F. Seal joints as required for weathertight construction. Place sealant to be completely concealed in joint. Do not install sealants at temperatures below 40 deg F (4 deg C).

G. Soldered Joints: Clean surfaces to be soldered, removing oils and foreign matter. Pre-tin edges of sheets to be soldered to a width of 1-1/2 inches (38 mm); however, reduce pre-tinning where pre-tinned surface would show in completed Work. Tin edges of uncoated copper sheets using solder for copper. Do not use torches for soldering. Heat



surfaces to receive solder and flow solder into joint. Fill joint completely. Completely remove flux and spatter from exposed surfaces.

3.2 COPING INSTALLATION

A. Install cleats, anchor plates, and other anchoring and attachment accessories and devices with concealed fasteners.

B. Anchor copings with manufacturer's required devices, fasteners, and fastener spacing to meet performance requirements.

1. Interlock face and back leg drip edges of snap-on coping cap into cleated anchor plates anchored to substrate at manufacturer's required spacing that meets performance requirements.

3.3 ROOF-EDGE DRAINAGE-SYSTEM INSTALLATION

A. General: Install components to produce a complete roof-edge drainage system according to manufacturer's written instructions. Coordinate installation of roof perimeter flashing with installation of roof-edge drainage system.

B. Downspouts: Join sections with manufacturer's standard telescoping joints. Provide hangers with fasteners designed to hold downspouts securely to walls and 1 inch (25 mm) away from walls; locate fasteners at top and bottom and at approximately 60 inches (1500 mm) o.c.

1. Provide elbows at base of downspouts at grade to direct water away from building.

3.4 CLEANING AND PROTECTION

A. Clean exposed metal surfaces of substances that interfere with uniform oxidation and weathering.

B. Clean and neutralize flux materials. Clean off excess solder and sealants.

C. Remove temporary protective coverings and strippable films as roof specialties are installed.
