Blue2 posters 100704c w nyt

Personal Donations:Gail GreenleesRoy and Teresa JenningsSteven HurwitzMolly Bourne MDSheryl CahillDavid ShufordDavid Gerstel BuilderJohn Speh, Jr.Michael and Connie MeryBuilding Supply CenterKathy MungerLouise B. LandrethMelanie StoneWinifred TarpeyMartha and Alan ProctorRoger HoffmanDevi and Stan WeisenbergJim GrantLeslie PlantCarlos and Rebecca PorrataJody FarrellDinah and Noah StroeJulie and James MonsonMarge GenolioMoreva SelchieWade and Sandra HollandDale Sorensen and George FriemothShirley SalzmanJim and Esther MungerLew Tucker and Ottavia BassettiLynne LevineTerry Nordbye and Catherine Cauf ieldDavid and Roanne KaplowTimothy and Sherry StantonJames and Kathryn LinoIsmael GutierrezWendy FriefeldVictoria (Tor) Taylor and Laurie

MonserratPeter BarnesAxel Nelson ConstructionKevin and Nancy LunnyJames Stark and Penny Livingston-StarkThomas and Barbara GamanJoseph and Susan CernyNick BurgoyneSusan BraytonJane and Mark KrissMargaret Mackenzie-HoosonChrista BurgoyneNonnie WelchJill GilbertSteven and Leah BrockAnne W. BaxterCathleen DorinsonGail SenecaPaul ElmoreTom and Tamia AndersonEric D. Levine and Sophie BrayRandy Fleming and Chris RedingLelia SeidnerJoe and Maureen BlumenthalBridger and Katherine MitchellJonathan Rowe and Mary Jean Espulgar RoweRobert and Susan JanesJack Kramer, Point Reyes Nation John LuckettKatherine MaxwellMary EubankJennifer Lloyd NicholsTelescience NetworksDavid and Susan MillerMaria Straatmann and Rick Johnson

We thank all those who have contributed to make the achievement of the Blue House Project possible. We have done our best to keep up to date records of all contributions and contributors, but if you helped and do not see your name here, just know that we are, in fact, thanking you too.

Ruth FleshmanGary Ireland and Elizabeth ZarlengoLaura Natkins and Peter GradjanskyVivian MazurRick LewisKris Brown and Scoby ZookCeline UnderwoodLorraine and Jeremy Fisher-SmithMeg LindenJudith PollockCynthia ClarksonPoint Reyes PrintingDavid Sheff and Karen BarbourElisabeth and Eugene PtakBarbara JayMartha HowardPatricia McEneanyEleanore Despina and Bing GongEllis and Deborah JonesToni LittlejohnKim Klein and Stephanie RothSydne and Allan BortelNick BurgoyneKerry and Dewey LivingstonMarna ClarkeNancy BertelsenMarks Family CreameryMargery LevineSusanna Henderson & Stephen HendersonTanis WaltersSusan ScottCarol FriedmanJean SoostJohn and Diane LevySue Flagg and Carlo RoccaNancy Vayhinger and Stuart DavidsonCynthia OhamaBeyond Eff iciency, Inc.Shirley SalzmanBetty Woolfolk and Nick CorcoranMargo W. WingJulie and Jonathan SickRolphe and Judith SickJeanne KehoeJim and Pamela CampeVivian MazurMark and Martha GreenoughJoe and Maureen BlumenthalAlan TaborChris GiacominiCharles and Marion HovdenDavid and Susan MillerKris Brown and Scoby ZookNatasha GranoffCLAM BOARDLeo den OudenKate WilsonWells Fargo FoundationNorman MasonsonBill and Jane HunterPeter BriccaDoris Allen and Nancy SakellarAnn Gessert and Raul GallyotLotte H. SteinMartha and Alan ProctorJim GrantRenee Cormier and Tom GardaliThomas and Barbara GamanWendy FriefeldAndrew Romanoff and Inez Storer

Donated time, energy, expertise, and pro-bono services:Nancy AdessSonja AndersonKevin BeckJames BillAndrew BlakeSharon BlockSydne BortelDave BrastSusan BraytonMarie BroughamAllen BronsteinChrista BurgoyneAran CollierJim CampePam CampeMaureen CorneliaBarry DeutschJon FernandezPrudence FerreiraAndy FesselLorraine Fisher-SmithCarol FriedmanTim GravesonIsmael GutierrezBruce HamiltonKaty HollbacherMartha HowardGraham IrwinColleen KingKris KnutsonScott Leslie SignsKen LevinSam LevinRae LevineBarry LinderRoger LippmanToni LittlejohnKerry LivingstonMarshall LivingstonStephen Marshall Sally MaysDan MorseLowell MoultonGeorge NesbitWill NoelTerry NordbyeCarlos PorrataRishi SchweigSuzanne SpehJulie ShaySusan ScottPeter SheremetaTor TaylorPaul Torikian, P.E.Nancy VayhingerVan Van der MatenAndy WahlPeter WaringAmy WhelanNick Whitney

Blue2 Design Team:Design:Jim Campe, Jon Fernandez, Marshall Livingston:

CLAM Property Committee

Architect of Record: James Bill: Zero Impact Architecture

Energy Eff iciency and Passive House Design: James Bill, Graham Irwin: Zero Impact ArchitectureLowell Moulton: Passivhaus Design ServicesPeter Waring: Energy-AbleKevin Beck: Building Performance ServicesPrudence Ferreira: Integral Impact IncSharon Block: Block Green Strategies (T24)Roger Lippman: energy modelingAndy Blake: energy modeling

Structural Engineering: Katy Hollbacher: Beyond Eff iciency

Solar Mechanical System Design and Installation:Andrew Blake: ABCoAran Collier: Sun First! SolarSam Bernier, Franz Feuerherdt: Vaillant SolarDan Smith: Sebastopol Heat and CoolSharon Block: Bright Green Strategies (T24 analysis)

Appliances and Lighting:Marie BroughamMarc Larbay: Light Express

Green Point Rating and LEED H Certif ication:Kevin Beck: Building Performance ServicesPrudence Ferreira: Integral Impact IncGeorge Nesbitt: Environmental Design BuildWill Noel

Landscape Design:Nancy Stein: Nancy Stein Landscape Design

General and Sub-Contractors:Terry Nordbye: The Practical HouseCharles Bennett: Mr Insulation

CLAM’s Blue House Blog: Terry Nordbye: The Practical HouseRae Levine: past CLAM Executive Director

Video documentation and production: Toni Littlejohn, Tim Graveson, Allen Bronstein: LN Productions

Donated / discounted materials and equipment:Fairfax Lumber - lumber, windows, suppliesAnna Francis - woodInverness Gardening Service - wood chipsJudy Roberson - hand-painted mosaic tilesService Partners Supply - Cellulose insulationStudor, Inc.- Air Admittance ValvesSun First! Solar - solar thermal systemVaillant Solar Systems - solar thermal panelsStephen Marshall CabinetmakerSebastopol Heat and Cool - mechanical Ultimate Air - energy recovery ventilatorStandards of Excellence - appliancesRoger Lippman - energy modeling equipmentChris Hunt - energy modeling equipmentNorth Coast Water District - low f low toilet

Financial Support for Blue2 Project:CLAM MembersMarin County Affordable Housing Trust FundCounty of MarinTides Foundation, Leocha FundTides Foundation, Randy Lia Weil FundMarin Community FoundationWells Fargo Foundation

t h a n k y o u t o o u r s u p p o r t e r s ! !

designerJim CampeCLAM Property CommitteeInverness

architect and passive house designJames Bill, Graham IrwinZ I A [ zero impact architecture ]San Anselmo

structural engineerKaty HollbacherBeyond Efficiency IncBerkeley

geotechnical engineerPaul TorikianTorikian GeotechnicalForest Knolls

Green Point Rating consultantKevin BeckBuild It GreenBerkeley

LEED consultantPrudence FerreiraIntegral Impact IncSan Francisco

general contractorTerry NordbyeThe Practical HouseInverness

Passive House energy modelingLowell MoultonBuilding Energy Efficiency ConsultingSan Mateo

C L A M ' s B l u e 2 P a s s i v e H o u s ebest comfortlow carbon footprinthealthiest indoor air qualitylow operational and construction costs

© 2010 ZIA

Page 3

Vaillant Solar SystemsSimulation by SBElectricity DHW Single FamilyCLAM- 22April10

T*SOL Pro 4.5 4/22/2010

Solar Energy Consumption as Percentage of Total Consumption

Solar Contribution 11,820,403 Btu Total Energy Consumption 12,547,424 Btu

DecN o vOctSepAugJulJunM a yAprMarFeb

[ Bt

u ]

per

wee

k

320,000300,000280,000260,000240,000220,000200,000180,000160,000140,000120,000100,00080,00060,00040,00020,000

0

Daily Maximum Collector Temperature

DecN o vOctSepAugJulJunM a yAprMarFebJan

[ °F

]

320

300

280

260

240

220

200

180

160

140

120

100

80

These calculations were carried out by T*SOL Pro 4.5 - the Simulation Programme for SolarThermal Heating Systems. The results are determined by a mathematical model calculation withvariable time steps of up to 6 minutes. Actual yields can deviate from these values due tofluctuations in climate, consumption and other factors.The system schematic diagram above doesnot represent and cannot replace a full technical drawing of the solar system.

Page 12


T*SOL Pro 4.5 5/11/2010

Space Heating Loop(

High Temp Heating Loop:Flow Temperature: 54.7 °CReturn Temperature: 49.17 °C..

Low Temp Heating Loop:Flow Temperature: 43.65 °CReturn Temperature: 35.36 °C.,

Distribution to Heating Loops:Percentage of HT Loop when split amongst loops: 0 %

Results of Annual SimulationYear Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Electricity Savings in MJ12,810 1,122 990 1,257 1,188 1,108 952 1,055 1,060 985 1,086 1,034 972

CO2 Emissions Avoided in kg2,370 208 183 233 220 205 176 195 196 182 201 191 180

Total Solar Fraction in %94 84 85 99 99 100 100 100 100 100 100 91 77

DHW Solar Fraction in %96 85 86 100 99 100 100 100 100 100 100 93 79

Heating Solar Fraction in %86 82 82 99 100 100 101 0.0 0.0 0.0 99 85 75

System Efficiency in %22 31 27 25 22 20 17 18 18 17 20 27 31

Solar Contribution to DHW in MJ10,436 655 713 930 960 962 896 1,024 1,028 956 949 795 568

Solar Contribution to Heating in MJ1,990 434 247 290 192 112 27 0.0 0.0 0.0 105 208 374

Boiler Energy to DHW in MJ449 116 113 4 7 0.0 0.0 0.0 0.0 0.0 0.0 60 149

Boiler Energy to Heating in MJ315 93 55 3 0.2 0.3 -0.2 0.0 0.0 0.0 0.5 36 126

Energy: Aux Heating in MJ764 209 168 7 8 0.3 -0.2 0.0 0.0 0.0 0.5 96 276

Energy Supply to Solar System in MJ12,426 1,089 960 1,220 1,152 1,074 923 1,024 1,028 956 1,054 1,003 943

solar fraction: note that during portions of winter, the sun does not povide all of the heat requirements

the water to air heat exchanger: when heat is called for, water from the solar storage tank is pumped through this. As the fresh air supply air is pumped through the fan coil heat exchanger, it picks up the heat and delivers heated fresh air to the rooms.

ERV; Energy Recovery Ventilator: The out going air is passed through a fan coil heat exchanger near the incoming air, and the heat is transfered from the outgoing air to the incoming arir, so that minimal heat is lost by adding fresh air constantly to the house.

solar modeling: for this system, the solar thermal model suggests that it will:

reduce CO2 emmissions by 2,370 kg, equal to 2.6 tons

supply 94% of total heating requirements, which breaks down as

96% of the domestic hot water heat requirements, and

86% of the space heating requirements.

t h e s o l a r t h e r m a l s y s t e m










© 2010 ZIA

60-180 deg

T1:SOLAR

DRAINBACKTANK

10 gallon

T2 & 3:SOLAR

STORAGETANKS

2 - 80 gallon

SOLAR THERMALPANELS

hot waterto houseP1:

drainbackwaterpump

T

T cold water supply

E

T

mixer valve

SP1 SP2 SP4

P2: fan coil water pump

F

backflowpreventer

to and from fan coil

60-180 deg

100 deg

120-180 deg

SP3

F

T

T4:ELECT

BACKUPDHW TANK

20 gallon

E

F

T

T

ESP4: solarinsolation panel

T

T

80-180 deg80-180 deg

Solar panels: As we are aiming for maximizing the winter heat gain during the winter months when the sun is lowest and has fewer btus available, we are using 4 panels and placing them at a steep angle so we can collect as many winter rays as possible. We do not care to collect summer heat as we are over sized for those months.

Tanks: There are 4 tanks:

1 backup electric domestic water heater

2 tank for the drain-back water when the panels are not being used

3 solar hot water storage, plumbed in parallel with solar panel heat exchanger loops on the bottom and heat exchangers at the top for the space heating fan coil heat exchanger loops in the supply duct.

Drain-back system: Rather than use a pressurized glycol loop, we chose to use a drain-back system. The system was designed to maximize the heat gain in winter. This means it is oversized for summer. Being oversized, it will have months of overheating during the summer. Glycol systems break down quickly when overheated, and have strategies built in that make them less efficient as they try to dump excess heat and protect the glycol.

Hot water to the space heating heat exchange: When the thermostat calls for heat, the pump sends hot water through these pipes to the fan coil heat exchanger in the duct.

Page 3


T*SOL Pro 4.5 4/22/2010

Solar Energy Consumption as Percentage of Total Consumption

Solar Contribution 11,820,403 Btu Total Energy Consumption 12,547,424 Btu

DecN o vOctSepAugJulJunM a yAprMarFeb

[ Bt

u ]

per

wee

k

320,000300,000280,000260,000240,000220,000200,000180,000160,000140,000120,000100,00080,00060,00040,00020,000

0

Daily Maximum Collector Temperature

DecN o vOctSepAugJulJunM a yAprMarFebJan

[ °F

]

320

300

280

260

240

220

200

180

160

140

120

100

80

These calculations were carried out by T*SOL Pro 4.5 - the Simulation Programme for SolarThermal Heating Systems. The results are determined by a mathematical model calculation withvariable time steps of up to 6 minutes. Actual yields can deviate from these values due tofluctuations in climate, consumption and other factors.The system schematic diagram above doesnot represent and cannot replace a full technical drawing of the solar system.

t h e v e n t i l a t i o n s y s t e m










© 2010 ZIA

T

FCHRV

outs

ide

air filter air filter

E E

CN2

S boost, bath

S boost, kitch

T thermostat, grt rm

T h

h T

potable water FAN COIL

RH

h T

potable water FAN COIL

elect duct element

Heat Recovery Ventilation: The incoming air and outgoing air pass beside each other and transfer their heat to the other. So if it is colder outside than inside, the heat of the inside air being exhausted is transfered to the colder incoming fresh air. In the summer, the heat is transfered in the opposite direction.

This unit has a bipass option so that it can bring in cool night air and bipass the heat transfer so the incoming air stays cool, thereby cooling the house at night. In this climate, that is an easy solution to cooling. Once cool, the house will retain its temperature even if the outdoor air gets hot, as the house is so well insulated and air tight.

Heat Recovery Ventilation: There are two ducts systems in the house:

the supply air which delivers a constant flow of fresh air that has been tempered, and

the exhaust system that removes stale and impure air, constantly.

Heat Recovery Ventilation: The H/ERV has two fans, one for incoming supply air, and one for the exhaust air, and air filters to ansure the air is clean.

Backup Space Heat: If therre is no sun for a period of time, and it is cold out, then the system needs some sort of backup heat. In this system, we have an electric element heater in the duct. When there is not enough heat in the solar storage tanks, then this heater will turn on if the thermostat is calling for heat, instead of the pump that normally delivers the solar hot water to the fan coil heat exchanger.

H/ERV controls: There are booster switches in the kitchen and bathroom to boost the fan speed to remove cooking smells or moisture buildup in the bathroom. The main control is a thermostat in the great room, with a bypass switch next to the thermostat.

Solar Space Heat: The primary space heat is from the solar storage tanks. This hot water is pumped through a heat exchanger (fan coil) in the duct after the fresh incoming air has passed through the H/ERV. The fresh supply air flowing through the radiator (fan coil) will pick up the heat from the water and be distributed through out the house.

Solar Water Heat: The water comes from the solar water storage tanks and goes to the fan coil heat exchanger in the duct.

t h e d e t a i l s










© 2010 ZIA

gutter eave det explodedScale: 3" = 1'-0"1

Install continuous layer of sheathing up walls andover roof, all joints sealed and taped and glued to

framing behind or solid blocking where no framing.All holes through sheathing will have solid blocing

behind and wire or plumbing will be caulked intohole and sheathing glued to blocking.

At exterior walls, install continuous layer of drywall as air seal up walls and vaulted ceiling, all joints sealed and taped and glued to framing behind or to solid blocking where no framing.

Install furring siding, eaves,and roof (rigid insulation,

blocking and sheathing) overthe air sealed sheathing layer

and Tyvek (or similar). AllTyvek edges to be taped on alledges to sheathing below or to

tyvek layer below. Lap alljoints 2" minimum. Run

continuous Tyvek layer upwalls and over roof sheathing.

NOTE:Install interior walls and drop ceilings after complete exterior shell drywall is installed, sealed, and taped. Install full sjeets of drywall vertically on exterior shell so it is conntinuous from sill to ceiling.

Install all exterior shed walls, all unconditioned-space walls, after complete exterior shell sheathing is installed, sealed, and taped, and continuous Tyvek layer is installed and taped.

All penetrations through drywall will have solid blocking with oversized hole so 1/4" min clearance on all sides of wire or pipe for caulking seal. Glue drywall to blocking all around hole.

All penetrations through drywall will have solid blocking with oversized hole so 1/4" min clearance on all sides of wire or pipe for caulking seal. Glue drywall to blocking all around hole.

All penetrations through exterior sheathing will have roof boot on inside face of sheathing. Mechanically seal the boot to the connduit with pipe clamp. Glue or caulk and screw boot to sheathing.

2x4

air sealing, building sectionScale: 1/4" = 1'-0"2

Install all interior walls and dropped celings afte shell is air sealed with drywall layer and sheathing layer installed.

Install continuous sheathing level air seal on walls and over roof.

install eaves and roofing layers after sheathing layer is completely air sealed.

Install siding after sheathing air seal layer is completely air sealed.

Install continuous drywall layer air seal up walls and under roof joists.

The tight shell: The shell is completely air sealed with tape on all seams, and with no penetrations to allow air to escape. the foam layer will be placed over this as one continuous layer to make sure there are no thermal bridges.

Advanced framing: Framing is placed on 24" on center and with as few pieces as possible. This means there is less cost, less labor, and more room for insulation. Some conventionally framed houses use 2x as much wood, and have, therefore, inferior insulation.

Sealing the sill: It is a common place for air to leak between the framing and the concrete stem wall. We seal this.

Permieter slab insulation: The house has a perimeter slab insulation 2" thick, as well as 7" thick insulation below the slab. The location of the slab perimteter insulation means it is a continuous layer of insulation surrounding the occupied and heated sapces. Most perimeter slab insulation allows heat to escape down the stem wall into the earth as it is placed, if at all, outside the stem wall.

Shell air tight: The shell is built first, and sealed and insulated. After that, the interior layers are installed. This helps insure an air tight house, and that no penetrations break that seal.

Eave framing: Eave framing is placed ont op of the sealed air tight roof sheathing, and the rafters offset form the main rafters to reduce conductivity.

m o r e d e t a i l s










© 2010 ZIA

Air sealed exterior outlet boxes: Special boxes are used to ensure that the drywall can be sealed to the box. The box has ways to seal the wire holes. Electrical boxes are one place much heat is lost from a house, and the primary way moisture gets into the wall framing creating mold.

Dense pack cellulose: Dense pack cellulose is far superior to any batt installations. We blew the insulation behind the drywall, and used an infrared camera to ensure it was installed completely.

Furred wall: Walls were furred out in the kitchen and bathroom to keep the extra wiring and plumbing associated with those rooms out of the air tight shell wall.

Rafter tails: The rafters are framed after the roof sheathing is air sealed, and the rafter tails are insulated and offset from the roof rafters below to reduce conductive heat loss through the wood.

Window header: It is non-existent where we don't need one, and sized for the opening where we do need one, insulated to reduce the conduction of heat, and has a metal hanger to reduce the amount of wood in the wall, which increases the room for insulation.

Permieter slab insulation: The house has a perimeter slab insulation 2" thick, as well as 7" thick insulation below the slab. The location of the slab perimteter insulation means it is a continuous layer of insulation surrounding the occupied and heated house. Most perimeter slab insulation allows heat to escape down the stem wall into the earth. .

Exterior insulation: This acts as a continuous thermal break on the outside of the framing and sheathing.

Interior framing: The exterior shell is framed and sealed and insulated on both sides, and then the interior walls are installed to ensure the air seal remains complete.

w h a t i s a P a s s i v e H o u s e ?










© 2010 ZIA

Diagram from New York Times article

Education

Blue2 posters 100704c w nyt