designing a low energy house · 2012. 5. 2. · lowell moulton of passivhaus design services, peter...

[ z e r o i m p a c t a r c h i t e c t u r e ]5½ light bulbs

Designing a Low Energy House

lessons learned


Our Big Goal:

Create an extremely low energy house

Beyond Passive House

Super Low Energy House


Two Strategies:

Passive House for saving energy

Solar Thermal for generating energy



Five constraints:

1 Small 750 sf house Harder to achieve PHPP because of Primary Energy, source energy Great environmental choice


BATHROOM KITCHENLAUNDRY

DININGLIVINGBEDROOM

CLOSET

ENTRANCE

PORCH

STRG

WALK

floor plan


Five constraints:

1 Small 750 sf house

2 All volunteers can’t necessarily count on each person can’tfireanyone


New Construction of Blue2 House (2nd Unit): Design: Jim Campe, Jon Fernandez, Marshall Livingston Architect of Record: James Bill, Zero Impact Architecture Energy Efficiency and Passive House Design: James Bill and Graham Irwin of Zero, Impact Architecture, Lowell Moulton of Passivhaus Design

Services, Peter Waring of Energy-Able, Kevin Beck of Building Performance Services, Prudence Ferreira of Integral Impact,

Structural Engineering: Katy Hollbacher of Beyond Efficiency Solar Mechanical System Design and Installation: Andrew Blake of ABCo, Aran Collier of Sun First! Solar,

Sam Bernier and Franz Feuerherdt of Valliant Solar, Dan Smith of Sebastopol Heat and Cool

Appliances and Lighting: Marie Broughman, Marc Larby of Light Express

Green Point Rating and LEED Certification: Kevin Beck of Building Performance Services, Prudence Ferreira of Integral Impact, Inc, and Will Noel

General and Sub-Contractors: Terry Nordbye of The Practical House, and Charles Bennett, Mr. Insulation Video Documentation and Production: Toni Littlejohn, Tim Graveson, Allen Bronstein of LN Productions Blog: Terry Nordbye, Rae Levine Volunteers and Donated/Discounted Services: Nancy Adess Sonja Anderson Kevin Beck James Bill Andrew Blake Sydne Bortel Dave Brast Susan Brayton Allan Bronstein Marie Broughman Christa Burgoyne Jim Campe Pam Campe Aran Collier Maureen Cornelia Barry Deutsch Fairfax Lumber Jon Fernandez Prudence Ferreira Andy Fessel

Lorraine Fisher-Smith Carol Friedman Tim Graveson Ismael Gutierrez Bruce Hamilton Katy Hollbacher Graham Irwin Colleen King Kris Knutson Marc Larby Scott Leslie Signs Ken Levin Sam Levin Rae Levine Barry Linder Roger Lippman Toni Littlejohn Kerry Livingston Marshall Livingston Sally Mays

Dan Morse Lowell Moulton Will Noel Terry Nordbye Carlos Porrata Rishi Schweig Dan Smith Suzanne Speh Julie Shay Susan Scott Peter Sheremeta Tor Taylor Paul Torikian, P.E. Nancy Vayhinger Van Van der Maten Andy Wahl Peter Waring Amy Whelan Nick Whitney

Donated/Discounted Equipment and Materials: Fairfax Lumber - lumber, supplies Anna Francis - wood Inverness Gardening Service - wood chips Judy Roberson - hand-painted mosaic tiles

SP Supply - Cellulose insulation Studor, Inc.- Air Admittance Valves Ultimate Air - Heating Recovery Ventilator Valliant Solar Systems - Solar Collectors

Financial Support: 200+ CLAM Members Marin County Affordable Housing Trust Fund Marin County

Tides Foundation, Leocha Fund Tides Foundation, Randy Lia Weil Fund Wells Fargo Foundation

Thanks to this CLAM Project Team –

these people and companies who are creating two new affordable eco-friendly homes in Point Reyes Station

Property Acquisition: Dan Morse of Dan Morse Real Estate, CLAM Property Committee and Board Renovation of “Blue House” on Highway One: Design: Jim Campe, Jon Fernandez, Marshall Livingston Energy Efficiency Testing & Design: Kevin Beck, Andy Wahl of AC Home Performance, James Bill and Graham Irwin of Zero Impact Architecture, Lowell Moulton of Passivhaus Design Services, Peter Waring and Andy Fessel of Energy-Able Soil Testing: Paul Torikian, P.E. Construction: Terry Nordbye Construction, including Julian Brock, Bill Logan, Chris Miller, and Pat Stimpson, Sebastian Cuautle, Jorge Lopez and Joe Fechter; and Inverness Gardening Service Sign Design: Barry Deutsch Sign Production: Scott Leslie Interior Finish & Painting: Jim Campe, Pam Campe, Susan Brayton, Barry Linder, Suzanne Speh, Sonja Anderson, Tor Taylor, Rae Levine Exterior Painting: Bruce Hamilton, Colleen King, Van Van der Maten Photo-journal documentation: Terry Nordbye Video documentation and production: Toni Littlejohn Resident Selection: Lorraine Fisher-Smith, Carol Friedman, Rae Levine, Kerry Livingston, Carlos Porrata New Construction of Blue2 House (2nd Unit): Design: Jim Campe, Jon Fernandez, Marshall Livingston Architect of Record: James Bill, Zero Impact Architecture Energy Efficiency and Passive House Design: James Bill and Graham Irwin of Zero Impact Architecture, Lowell Moulton of Passivhaus Design Services, Peter Waring of Energy-Able, Kevin Beck of Building Performance Services, Prudence Ferreira of Integral Impact, Structural Engineering: Katy Hollbacher of Beyond Efficiency Solar Mechanical System Design and Installation: Andrew Blake of ABCo, Aran Collier of Sun First! Solar, Sam Bernier and Franz Feuerherdt of Valliant Solar, Dan Smith of Sebastopol Heat and Cool Appliances and Lighting: Marie Broughman, Marc Larby of Light Express


Five constraints:


2 All volunteers

3 Affordable non-profit $800K on these two houses Embracelinkinggreenandaffordable Took huge step here, ground breaking Need to keep costs constained Createslongtermaffordability


From Representatvie Lynn Woolsey’soffice,CLAM President and Exec Director

Supervisor Steve Kinsey,From Assemblyperson Jared

Huffman’soffice


Five constraints:


2 All volunteers

3 Affordable non-profit

4 LEED and GPR Link PH with green

Super Low Energy HouseBuilder Name:TBD

Project Team Leader: ZIA

For Homes Home Address: CLAM 2nd Unit

Adjusted Certification Thresholds

Building type: Single detached Certified: 40.5 Gold: 70.5

# of bedrooms: 1 Silver: 55.5 Platinum: 85.5

Project type: Custom

Floor area: 750

Innovation and Design Process (ID)Project Team

Leader Builder Green Rater Civil Engineer

Trade -

Landscape

professional

Other

1. Integrated Project Planning 1.1

Preliminary Rating – conduct a preliminary LEED for Homes meeting, with provider participation and key

members of the project team. Must confirm – award level target, target credits and parties accountable for

meeting each credit.

NOTES:

prerequisite Calculation None required

Verification Participate in the preliminary LEED for Homes rating, or verify participation by the LEED for Homes

Provider. X

Inspection None required

1.2

Integrated Project Team – Assemble and involve a project team to meet the three criteria: include team

members, in addition to the builder and Green Rater, whose capabilities include at least three of the

following skill sets: a) architecture, residential building, engineering, building science or performance

testing, green building, sustainable design, landscape architecture, land use planning. b) include all

project members in various phases of project, and c) conduct regular project meetings.

NOTES:

Calculation None required

Verification Present a list of project team members to the Green Rater X X

Verification Present a list of meeting dates or plans for regularly scheduled meetings to the Green Rater. X X

Verification Visually verify the list of project team members and meeting dates. X


1.3Professional Credentialed with Respect to LEED for Homes – One principal member of the project

must be a LEED for Homes AP.

NOTES:


Verification Identify the Professional Credentialed with respect to LEED for Homes to the Green Rater X X

Verification Verify participation of a Professional Credentialed with Respect to LEED for Homes on the project team. X


1.4 Design Charrette – Conduct at least one full-day charrette with project team no later than design

development phase.NOTES:


Verification Present charrette information – dates and participants to Green Rater. X X

Verification Participate in the charrette, or verify participation by the LEED for Homes Provider. X


1.5

Building Orientation for Solar Design – Home design must meet 4 requirements: Glazing area on

north/south walls 50% greater than on east-west, East-west axis is within 15 degrees if due east-west, At

least 450 sq. ft. south-facing roof area, oriented for solar applications, 90% of south-facing glazing is

shaded in summer, unshaded in winter.

NOTES:

CalculationCalculate the ratio of glazing area on the north- and south-facing to the glazing area on the east- and west-

facing walls.

Project Description

LEED for Homes Verification , Inspection and Accountability Checklist


Five constraints:


2 All volunteers

3 Affordable non-profit

4 LEED and GPR

5 No builder important part of team



SUCCESS !! so far

Passes PHPP (tentative)

545 wattsis the amount of energy required to heat the Blue2 Houseon the coldest day of the year

5½ light bulbs



SUCCESS !! so far


5.5 light bulbs

94% solar fraction for hot water and space heatingSo if the sun was shining last week,then max load may be closer to 0 watts


Page 12

Vaillant Solar Systems

Simulation by SB

Electricity DHW Single Family

CLAM- 22April10

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 Simulation

Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Electricity Savings in MJ

12,810 1,122 990 1,257 1,188 1,108 952 1,055 1,060 985 1,086 1,034 972

CO2 Emissions Avoided in kg

2,370 208 183 233 220 205 176 195 196 182 201 191 180

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 MJ

10,436 655 713 930 960 962 896 1,024 1,028 956 949 795 568

Solar Contribution to Heating in MJ

1,990 434 247 290 192 112 27 0.0 0.0 0.0 105 208 374

Boiler Energy to DHW in MJ

449 116 113 4 7 0.0 0.0 0.0 0.0 0.0 0.0 60 149

Boiler Energy to Heating in MJ

315 93 55 3 0.2 0.3 -0.2 0.0 0.0 0.0 0.5 36 126

Energy: Aux Heating in MJ

764 209 168 7 8 0.3 -0.2 0.0 0.0 0.0 0.5 96 276

Energy Supply to Solar System in MJ

12,426 1,089 960 1,220 1,152 1,074 923 1,024 1,028 956 1,054 1,003 943


SUCCESS !! so far


5.5 light bulbs

96% solar fraction

0.20 ACH50 before insulation and drywall0.6isrequirementforPHcertification.



The Lessons Learned

Architecture process and the PHPPDesigning the detailsIntegrated solar-mechanical designPassive House and permitsPassive House and LEED / GPRLow carbon insulation


ISSUES:Arch:designasprocess;generaltospecificPHPP: wants most at start

Arch:materialschoicesnotdefinitiveuntilbuilt; things change.PHPP: wants to know pump specs and size, etc, up front

Arch:knowwearemeetingtargetearly.PHPP:receivedPHIUSconfirmationafterfoundationandslabandgroundinsulationinstalledandfullyframed(2010.04.10).

Architecture and PHPP


EXAMPLE, SOLAR-MECH:Solar panel engineer added another panel last month and enlarged storage from 120 gallons to 160 gallons.

We have been changing this since the beginning.

Did not get the mechanical contractor on boarduntilendMarch

DidnotknowweneededlicenseuntilFeb




SOLUTIONS:

create the team early architect structural engineer mechanical engineer PH consultant solar modeling consultant builder LEED or GPR consultantsmodel early


Designing the Details



first

build the shell complete with allpenetrationssealed,insulation,drywall


then add

interior walls and dropped ceiling and second roof and eaves



then add

interiorfinishes



Completely insulated slab with no thermal bridgetofootingandsoil.

Advancedframingformoreinsulationlessthermal bridges

insulationlayerforthermalbreak

sill sealtermite barriersradon vent



air sealed at two planes.

eaveraftersdonotpenetrateairseal,provide thermal break

blockingatpenetrationsforgluing



air sealed at two planes

air seal wraps ridge beam

blocking at joints for gluing



DETAIL DESIGN ISSUES:

not certain if we are passed PHPP before westartedconstruction

permit issues

insulationchanges

no WUFI analysis

green issues



DESIGN and CONSTRUCTION ISSUES:

details changing as we go

costs changes required to be minimal

certaincostsnotincludedinbid(ieradon)

other architect



SOLUTIONS:




Integrated solar-mechanical design


revisions

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rev. 2: 8 FEB ‘10

rev. 3: 5 MAY ‘10

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SP3ventilation, solar thermal, mech room

3'-0"

2'-6"

Ø 2

'-4"

sloped ceiling up

ridge beam

sloped ceiling up

sloped ceiling up

EQ EQ

F

h

T

flow meter

temperature sensor

humidity sensor

electric currentE

T

FCHRV

outs

ide

air filter air filter

potable watercompatibleFAN COIL

supply wall register

HRVexhaust ceiling registerE-CR

exhaust wall registerE-WR

duct sound muffler

supply ceiling registerS-CR

S-WR

MF

manifold supply

manifold exhaust

exhaust duct

supply ductFC

HRV: heat or energy recovery ventilator

air to water heat coil

RH duct resistance heater

MF

CN controller

S switchH1: electric wall heater

mflr

flat ceiling

jumper duct

fluorescent

recessed

pendant

E E

T

CN

2

S boost, bath

S boost, kitch

T thermostat, grt rm

Th

Th

T

ERV supply above storage door

ERV exhaust through roof

air-water heat coil

access hatch for servicing filters, etc.

ERV

NOTEall supply and exhaust registers have balancing heads or have balancing damper in duct.

8" duct8"

duct

6"

duct

4"

duct

4" duct

4" duct

4" duct

6"

duct

6"

duct

4" duct

4" duct

4" duct

6"

duct

h

h

T

120-180 deg

60-180 deg

T1:SOLAR

DRAINBACKTANK

10 gallon

F

h

T

flow meter

temperature sensor

humidity sensor

electric currentE

T2:SOLAR

STORAGE w/HEATER

TANK80 gallon

SOLAR THERMALPANELS

hot waterto house

P1: drainback water pump

T

Tcold water supply

flat ceiling

jumper duct

fluorescent

recessed

pendant

E

T

CN

1

E

SP4: solar insolationpanel

mixervalve

SP1 SP2 SP4

P2: fan coil water pump

F

T

F

T

backflowpreventer

E

to and from fan coil

120-180 deg

60-180 deg

100 deg

120-180 deg

SP3

F

T

T

T3:SOLAR

STORAGE w/HEATER

TANK80 gallon

S-WR

E-CR

E-CR

E-CR

S

S

S-WR

S-WR

C LD

OO

R

C LD

OO

R

C LS

INK

C LT

UB

CL WINDOW

C LW

IND

OW

vale

nce

21'-0"

+/-

vale

nce

11'-8"

+/-

Solar Mechanical diagramScale: 3/8" = 1'-0"

1

3

Integrated solar-mechanical system


CONCEPT:Have high Primary Energy Demand.

Reduce PE with solar thermal as main en-ergy load is hot water.

Ifhavethesystem,thencosteffectivetoadd more panels and tank to heat space.

Problem is night and winter. Graham Irwin



70%oflife-cyclecostsarecommittedbeforefirst1%ofcostsarespent.

Model earlyDesignasifenergymattersIntegrated design



Chose drainback because we over-designed for summer.

Most manufacturers push glycol systems not drainbackTheycan’thaveoverheating.


Page 3


Simulation by SB


CLAM- 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[

Btu

] per

week

320,000

300,000

280,000

260,000

240,000

220,000

200,000

180,000

160,000

140,000

120,000

100,000

80,000

60,000

40,000

20,000

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.


Most solar thermals sold for DHW only.

Solar modeling is generally for DHWnotspaceheating


DHW andSTORAGE

TANK

SOLAR THERMALPANELS

cold water supply

hot waterto house

P1

P2

ER1electric resistance

backup DHW heaterat top of tank; size?

tank fill supply

backflowpreventer

glycol loop

low temp wall radiators

insid

e

outs

ide

HEATRECOVERYVENTILATER

ER2

CLAM 2 HOUSEPROPOSED SOLAR THERMAL AND MECHANICAL SYSTEMCONCEPT 1


ProblemintegratingPHPPmodelingwithsolar themal modeling.

PHPP relies on outside modeling for space heating.

Need accurate solar-thermal modeling that includesspaceheatingandincludesPHPPdata.

Need accurate solar incidence and climate data.


STORAGETANK

SOLAR THERMAL PANELS

cold water supply

hot waterto house

insid

e

outs

ide

ER2electric resistance space heat backup heater; size 1kW

HEATRECOVERY

VENTILATER

P1

P2

P3

ER1electric resistance backup DHW heater at top of tank; size?

DHWTANK

backflowpreventer

pre-heatedcold water

supply to DHWtank

glycol loop

integrated heat transfer unit, expansion tank, pump, controls




STORAGETANK

SOLAR THERMALPANELS

cold water supply

hot waterto house

insid

e

outs

ide


P1

P2

P3ER1electric resistance backup DHW heater at top of tank; size?

ER2electric resistance space heat backup heater; size 1kW

DHWTANK

tank fill supply

backflow preventer

pre-heated cold water supply to DHW tank

glycol loop


SOLAR OPTIONS EXPLORED:glycol systemsdrain-back into main heat tankdrain-back into small DB tank


DHW andSTORAGE

TANK

SOLAR THERMALPANELS

cold water supply

hot waterto house

P1

P2

ER1electric resistance

backup DHW heaterat top of tank; size?

tank fill supply

backflowpreventer

insid

e

ou

tsid

e

air filter

fan


HEATRECOVERY

VENTILATER



SOLAR OPTIONS EXPLORED:small supplemental water heat tankon-demand water heaterduct elementstratifyingtankwithelementontop


SOLARSTORAGE

TANK

SOLAR THERMALPANELS

cold water supply

hot waterto house

P1

P2


backflowpreventer

insid

e

outs

ide



DHWTANK

pre-heated supply water to DHW

ER2



SOLAR OPTIONS EXPLORED:wall radiators to deliver heat to spacevs duct heat exchangervs duct heat exchange in secondary loop


Integrated solar-mechanical systemCLAM 2 HOUSEPROPOSED SOLAR THERMAL AND MECHANICAL SYSTEMCONCEPT 7 DRAINBACK

SOLARSTORAGE

TANK

SOLAR THERMALPANELS

cold water supply

hot waterto house

P1P2


backflowpreventer

insid

e

outs

ide



DHWTANK


ER2

DRAINBACKTANK

P3

ORSOLAR STORAGE IS A STRATIFYING TANK AND HAS THE DHW INTEGRATED INTO IT.

SOLAR OPTIONS EXPLORED:differentmodelingsoftware


Integrated solar-mechanical systemCLAM 2 HOUSEPROPOSED SOLAR THERMAL AND MECHANICAL SYSTEMCONCEPT 8 drainback

SOLAR STORAGE &DRAINBACK

TANK

SOLAR THERMALPANELS

cold water supply

hot waterto house

P1

P2

ER1electric resistance backup DHW heater

backflow preventer

insid

e

outs

ide


HEATRECOVERY

VENTILATER

DHWTANK


ER2

P3

P2, ER2 CONTROLS:When heat required and storage temp is > 100 degrees, then P2 turns on, or, if < 100, the ER2 turns on.

P1 CONTROLS: When solar panels are hotter than storage water, P2 pump turns on. Turns off when storage temp is greater than 180 or if outdoor temp is less than 33 degrees.

P3, ER1 CONTROLS: When storage water temp is 10 degrees hotter than DHW tank, P3 turns on, unless DHW is hotter than 140 degrees. If DHW is lower than 100 degrees, and storage water is less than 90 dgrees, ER1 turns on until the temp is 120 degrees.



ON-DEMANDWATER HEATER

electric

T1:SOLAR

DRAINBACKTANK

10 gallon

T2:DHW TANKstratifying,

with elect heater120 gallon

potable water

SOLAR THERMALPANELS

hot waterto house


T

TT

T

cold water supply

E

T

F

DC

1

E


mixer valve

SP1 SP2 SP3


T

T

F

to fan coil

E

F

from fan coil

100 deg90-180 deg120 deg

50 deg

50-180 deg

backflowpreventer

My preferred solar-themal design



T

120-180 deg

60-180 deg

T1:SOLAR

DRAINBACKTANK

10 gallon

h humidity sensor

electric currentE

T2:SOLAR

STORAGE w/HEATER

TANK80 gallon

SOLAR THERMALPANELS

hot waterto house


T

Tcold water supply

flat ceiling

jumper duct

fluorescent

recessed

pendant

E

T

CN

1

E


mixervalve

SP1 SP2 SP4


F

T

F

T

backflowpreventer

E

to and from fan coil

120-180 deg

60-180 deg

100 deg

120-180 deg

SP3

F

T

T

T3:SOLAR

STORAGE w/HEATER

TANK80 gallon

Final solar-themal design



3'-0"

2'-6

"

Ø 2

'-4"

sloped ceiling up

ridge beam

sloped ceiling up

sloped ceiling up

EQ EQ

T

FCHRV

outs

ide


potable watercompatibleFAN COIL

HRVexhaust ceiling register

exhaust wall register

exhaust duct

supply ductFC

HRV: heat or energy recovery ventilator

air to water heat coil

RH duct resistance heatercontroller

switchH1: electric wall heater

E E

T

CN

2

S boost, bath

S boost, kitch

T thermostat, grt rm

Th

Th

T

air-water heat coil

access hatch for servicing filters, etc.

ERV

NOTEall supply and exhaust registers have balancing heads or have balancing damper in duct.

8" duct8"

duct

6"

duct

4"

duct

4" duct

4" duct

4" duct

6"

duct

6"

duct

4" duct

4" duct

4" duct

6"

duct

h

h

S-WR

E-CR

E-CR

E-CR

S

S

S-WR

S-WR

C LDOOR

C LDOOR

C LSINK

C LTUB

CLWINDOW

C LWINDOW

va

len

ce

21'-0"

+/-

va

len

ce 1

1'-8"

+/-

MECH OPTIONS EXPLORED:Zhender

UltimateAirRecoupAerator has integrated heat exchange has integrated electric element duct simplifiescontrols simplifiessizing pumpsalreadydefined


SOLUTIONS:

Find/use mechanical engineer you trust needs to use PHPP energy modeling, not theirs needstounderstandlowflowandlow energy needs needs to be able to model the solar orusedataofsolarfirmthatcan solarfirmneedstobeabletoinput monthly space heat demands from PHPP



LEED and GPR


LEED and GPR

ADDITIONAL GREEN ELEMENTS:

All FSC framing and sheathing

OVE(advanced)framing

No tropical hardwoods that aren’t FSC


LEED and GPR


Fly ash replacement in concrete(saved2.2tonsCO2)

Radonelmination

Recycled content

No or low VOC adhesives and materials.


LEED and GPR


Structuredplumbingwithcirculationpumpto ensure that 1/2 cup max water at each faucet before hot appears

Gray water ready


LEED and GPR

ISSUES:

radon tube changes

termite shielding changes


LEED and GPR

ISSUES:

insulation blown-in wet blown-in dry and QII behind fabric behind drywall can we use IR? County GPR LEED


LEED and GPR

SOLUTIONS:

SetupGreenmeetingsregularly

Convey green issues in plans so contractor certain to see and understand

Bring other decision makers in along way


Passive House and permiting


Passive House and Permiting

ISSUES:

FramingRoofinsulationFoundationinsulation



ISSUES:

Title 24 Energy Calcs Blue2is46%betterthanT24model. Broken Presciptivenotspecificgoals. Easy to circumvent. Cannot be changed Considering “major” change: eliminate AC in coastal are

Job Number: Page:

Certificate Of Compliance : CF-1R

Project Title Date

StandardDesign

ProposedDesign

ComplianceMargin

Space Heating

Space Cooling

Domestic Hot Water

Totals

Total Conditioned Floor Area:Building Type:

Building Front Orientation:

Number of Dwelling Units:

Number of Stories:

Raised Floor Area:

Zone Name

BUILDING ZONE INFORMATION

Floor Area Volume# ofUnits Zone Type

ThermostatType

VentHgt. Area

Type

OPAQUE SURFACES

Area U-Fac.Act.Azm. Tilt

GainsY / N JA IV Reference Location / Comments

Project Address

Documentation Author

Compliance Method

Telephone

Climate Zone

Building Permit #

Plan Check/Date

Field Check/Date

Slab on Grade Area:

Area:

ft2

ftft

ft

ft

2

2

2

Fans

Pumps

Avg. U:

Avg. SHGC:

Cav. Cont.Condition

Status

Single Family

Multi Family Existing + Add/Alt

Addition

Fenestration:

Ratio:

Existing Floor Area:

Average Ceiling Height:

ft 2

Insulation

Fuel Type:

Frame

(kBtu/sf-yr)

478709EnergyPro 4.4 by EnergySoft User Number: 3074 1 of 5

(Part 1 of 4)

TDV

CLAM II 4/12/2010

36.78 32.25 4.5310.01 8.00 2.00

42.36 7.54 34.82

90.74 49.10 41.64

BUILDING COMPLIES - HERS VERIFICATION REQUIRED748X

(E) 75 deg

1.00

1

748

Combined Hydronic 748 7,480 Conditioned Setback 2 n/a1.00

Roof 562

Roof 255

Wall 256

0.032

0.032

0.071

345

345

165

0

0

90

XXX

02-A32

02-A32

09-A15

1st Floor

1st Floor

1st Floor

Door 21

Wall 198

Wall 269

0.500

0.071

0.071

165

255

345

90

90

90

XXX

28-A4

09-A15

09-A15

1st Floor

1st Floor

1st Floor

Wall 259 0.071 75 90 X 09-A15 1st Floor

Run Initiation Time: 04/12/10 14:01:02 Run Code: 1271106062

11560 Highway 1 Point Reyes

BLOCK ENERGY DESIGN

EnergyPro

(831) 454-9956

CA Climate Zone 02

0

113

Percent better than Standard: 45.9%

1.59 1.30 0.29

0.00 0.00 0.00

New

New

New

New

New

New

New

0.20

0.48

Filled R-6.0

Filled

Filled

None

Filled

Filled

Filled

15.1%

n/a

10.0

R-6.0

R-0.0

R-0.0

R-0.0

R-0.0

R-0.0

Propane

Wood

Wood

Wood

None

Wood

Wood

Wood

Residential



ISSUES:

VentilationofbathroomsandkitchenusingE/HRV.



ISSUES:

Airadmittancevalves



ISSUES:

licensed mechanical system designers licensed mechanical contractor licensed plumbing contractor licensed solar installer

or

licensed mechanical engineer

CLAM- 22April10: A5

Page 1


Simulation by SB


CLAM- 22April10

T*SOL Pro 4.5 5/11/2010

Solar System with Combination Tank


Insulation and CO2


Insulation and CO2

ISSUES:

The CFCH propellants for some rigid foams havehugeGHGimplications.

GOALS:

not use CFCH propellant foamsnot use petroleum based foams


Insulation and CO2

WANTED TO USE:

Cellulose, as much as possible

Roxul as exterior thermal break

Foamglas under slab

Only cellulose in roof framing


Insulation and CO2

WHAT WE USED:

EPS under slab

Cellulose in walls and roof

XPS as exterior thermal break

Polyisocyanurate above roof


LESSONS LEARNED


Lessons learned

SOLUTIONS:



BE AN ADVOCATE


www. noprop16.org

Voting‘no’allowscompetition

Prop. 16 just a power grab by PG&E

Plugging in a monopoly

Carbon footprint reductions

[ z e r o i m p a c t a r c h i t e c t u r e ]

james billlicensed architectLEED AP

z e r o i m p a c t a r c h i t e c t u r e

integratingbeautywiththe science of deep sustainability

[email protected]

5½ light bulbs

designing a low energy house · 2012. 5. 2. · lowell moulton of passivhaus design services, peter...

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