Energy Codes & Standards. Do You Know What Is Taking Place In The Energy Codes For The Areas Where You Sell Product?? THE ENERGY CODES ARE CHANGING The

Energy Codes Energy Codes & & StandardsStandards

Do You Know What Is Taking Place Do You Know What Is Taking Place In The Energy Codes For The In The Energy Codes For The

Areas Where You Sell Product??Areas Where You Sell Product??

THE ENERGY CODES ARE CHANGINGTHE ENERGY CODES ARE CHANGING

The question is how will these codes The question is how will these codes impact the following product areas?impact the following product areas? Screw Down Roof ?Screw Down Roof ? More Insulation ?More Insulation ? Bare GalvalumeBare Galvalume Roof Panel ? Roof Panel ? Cool Roof Painted Panels ?Cool Roof Painted Panels ? Energy Efficient Windows, Doors & Light Energy Efficient Windows, Doors & Light

Transmitting Skylights ?Transmitting Skylights ?

Energy Codes Only Impact Energy Codes Only Impact Conditioned BuildingsConditioned Buildings

A building is A building is conditionedconditioned if it has a system if it has a system with a heating capacity of more than 3.4 with a heating capacity of more than 3.4 Btu/hr-ftBtu/hr-ft2 2 or a cooling capacity of more than or a cooling capacity of more than 5 Btu/hr-ft5 Btu/hr-ft2 2 for the entire building. for the entire building.

However, for a large building with several However, for a large building with several insolated heating/cooling units, the overall insolated heating/cooling units, the overall building may not be considered a building may not be considered a conditioned building. The builder should conditioned building. The builder should check this criteria to ensure that his building check this criteria to ensure that his building is really a conditioned building.is really a conditioned building.

Reasons for Increased FocusReasons for Increased FocusMore buildings being built.More buildings being built.More difficult to add new energy sources.More difficult to add new energy sources. Increased smog and pollution. Increased smog and pollution. Increasing energy costs.Increasing energy costs. Increased recognition of the following Increased recognition of the following

fact.fact.

““A Rapid Growth Rate in the Demand A Rapid Growth Rate in the Demand for Electric Energy is Due in Partfor Electric Energy is Due in Part to to Wasteful, Uneconomic, Inefficient, and Wasteful, Uneconomic, Inefficient, and Unnecessary Uses of Power.”Unnecessary Uses of Power.”

IMPENDING CRISISIMPENDING CRISIS

Only solution is to Only solution is to reduce reduce peak electricity demands peak electricity demands by by requiring more energy requiring more energy efficiency efficiency in building in building constructionconstruction..

New Energy Code RequirementsNew Energy Code Requirements Products that complied with ASHRAE and Products that complied with ASHRAE and

other energy codes will no longer work other energy codes will no longer work without changes to the product.without changes to the product.

To meet the new energy efficiency To meet the new energy efficiency requirements, requirements, a conditioned building will a conditioned building will have to improve energy efficiencyhave to improve energy efficiency by the by the use of :use of :Cool Roof Colors, Cool Roof Colors, More Wall & Roof Insulation, More Wall & Roof Insulation, Energy Efficient Windows, Doors, & Light Energy Efficient Windows, Doors, & Light

Transmitting Skylights.Transmitting Skylights.

Change of Direction for Change of Direction for Building SuppliersBuilding Suppliers

Energy issues will impact Energy issues will impact the the entire construction entire construction industryindustry by requiring that by requiring that all all buildingsbuildings use more energy use more energy efficient products and efficient products and insulation.insulation.

Primary Energy Concern Is The Primary Energy Concern Is The Heat In The BuildingHeat In The Building

Dark materials will Dark materials will ABSORB MORE HEATABSORB MORE HEAT from from the sun.the sun.

When those dark surfaces are roofs, some of When those dark surfaces are roofs, some of that heat is that heat is TRANSFERRED INSIDE.TRANSFERRED INSIDE.

When that happens, the When that happens, the Urban Heat Island Urban Heat Island EffectEffect becomes a factor.becomes a factor.

Urban areas are 6-8 °F warmer than suburbs Urban areas are 6-8 °F warmer than suburbs due todue to – dark pavementsdark pavements– dark roofingdark roofing– less vegetationless vegetation

Urban Heat Island EffectUrban Heat Island Effect Urban Heat Island EffectUrban Heat Island Effect A built-up environment A built-up environment

where a large proportion of dark surfaces absorb where a large proportion of dark surfaces absorb the solar radiation and radiate the heat back into the solar radiation and radiate the heat back into the atmosphere at a later time and creates heat the atmosphere at a later time and creates heat in the building.in the building.

To eliminate the Urban Heat Island Effect To eliminate the Urban Heat Island Effect requires a roof surface with a high requires a roof surface with a high reflectance/emittance which reduces the roof reflectance/emittance which reduces the roof heat absorption and creates a low surface heat absorption and creates a low surface temperature.temperature.

A lower roof surface temperature has the following A lower roof surface temperature has the following effects :effects :– less smog, less smog, – less pollution, less pollution, – lower peak energy demandlower peak energy demand

Energy Balance on Roof SurfaceEnergy Balance on Roof Surface

Re-Emitted Energy

Reflected Radiation

TotalSolar

Radiation

Absorbed Energy

Convection

Roof Surface Layer

Absorbed Energy Absorbed Energy = Total Solar Radiation = Total Solar Radiation

– – Reflected Radiation Reflected Radiation

– – Re-Emitted EnergyRe-Emitted Energy

Energy Code TerminologyEnergy Code Terminology

Solar ReflectanceSolar Reflectance

Infrared EmittanceInfrared Emittance

Cool Roof ColorCool Roof Color

Lowering of Allowable Maximum Lowering of Allowable Maximum Required U-FactorsRequired U-Factors

The new energy requirements are being The new energy requirements are being added to the energy codes.added to the energy codes.

Measuring Solar Measuring Solar ReflectivityReflectivity

1.0

.75

.50

.25

0

Least Efficient

Most Efficient

ReflectedAbsorbed

•Solar Reflectivity describes an object’s ability to REFLECT solar REFLECT solar radiationradiation away from its surface.

•Don’t confuse reflectivity with GLARE!

Gloss/Sheen vs. Solar ReflectanceGloss/Sheen vs. Solar Reflectance GLAREGLARE is a is a CONCERN CONCERN for commercial metal roofsfor commercial metal roofs Glare is the reflection of sunlight that can impair vision Glare is the reflection of sunlight that can impair vision

and create an and create an ANNOYANCEANNOYANCE This becomes This becomes CRITICALCRITICAL around airports (impaired around airports (impaired

vision of pilots) and in tightly built residential vision of pilots) and in tightly built residential neighborhoodsneighborhoods

The The GLAREGLARE of a coated surface is controlled by the of a coated surface is controlled by the

SHEENSHEEN Low Sheen = Low GlareLow Sheen = Low Glare

Gloss/Sheen and Solar Reflectance are totally independent properties and do not have an affect

on one another.

Impact on Building Temperature and Impact on Building Temperature and Energy Consumption by ReflectivityEnergy Consumption by Reflectivity

Rule of Thumb:Rule of Thumb:– FOR EVERY 1% INCREASE IN ROOF FOR EVERY 1% INCREASE IN ROOF

REFLECTANCE, TEMPERATURE DECREASES REFLECTANCE, TEMPERATURE DECREASES 1°F per day1°F per day

Example: Improving reflectance from 10% to 50% Example: Improving reflectance from 10% to 50% lowers surface temperature 40°Flowers surface temperature 40°F

– FOR EVERY 10% INCREASE IN ROOF FOR EVERY 10% INCREASE IN ROOF REFLECTANCE, COOLING/HEATING ENERGY REFLECTANCE, COOLING/HEATING ENERGY COSTS DROP 2¢/ftCOSTS DROP 2¢/ft2 2 per dayper day

(warm climates)(warm climates)

Measuring Infrared EmissivityMeasuring Infrared Emissivity

Infrared Emittance is the surface’s Infrared Emittance is the surface’s ability to reduce heat build-up by ability to reduce heat build-up by emitting the heat by radiationemitting the heat by radiation. .

Same type of values as solar Same type of values as solar reflectancereflectance

0 .25 .50 .75 1.0

Least Efficient Most Efficient

80% Cool Roof Requirement

Roofing Material Thermal PropertiesRoofing Material Thermal Properties

MetalMetal (unpainted) (unpainted) 0.60-0.80 0.60-0.80 0.04-0.100.04-0.10

MetalMetal (painted and granular coated) (painted and granular coated) 0.10-0.75 *0.10-0.75 * 0.75 +0.75 +

Comp Asphalt ShinglesComp Asphalt Shingles 0.05-0.250.05-0.25 0.900.90

Modified BitumenModified Bitumen 0.05-0.250.05-0.25 0.90 0.90

Built Up RoofingBuilt Up Roofing 0.05-0.800.05-0.80 0.900.90

Concrete/Clay TileConcrete/Clay Tile 0.20-0.700.20-0.70 0.90 0.90

White Single Ply MembraneWhite Single Ply Membrane 0.70-0.800.70-0.80 0.85 +0.85 +

Source: ORNL and LBNLSource: ORNL and LBNL

Emissivity is generally higher in coatings and paint films, but very low in unpainted metallic surfaces

InitialSolar Reflectance Infrared Emittance

* depending on color

Required Cool Roof ColorRequired Cool Roof Color

Roof Slope 2: 12 and lessRoof Slope 2: 12 and less – Solar Reflectivity of 0.70Solar Reflectivity of 0.70– Solar Emittance of 0.75Solar Emittance of 0.75

Roof Slope over 2: 12Roof Slope over 2: 12 – Solar Reflectivity of 0.25Solar Reflectivity of 0.25– Solar Emittance of 0.75Solar Emittance of 0.75

In 2001, ASHRAE introduced the Cool Roof In 2001, ASHRAE introduced the Cool Roof concept by giving credit when a concept by giving credit when a Cool Roof Cool Roof ColorColor will meet certain Reflectivity and will meet certain Reflectivity and Emittance standards which are a factor of Emittance standards which are a factor of the roof color and the roof slope.the roof color and the roof slope.

The VP Colors with their Reflectivity and Emittance values are on the following slide.

Cool Roof Energy Criteria

Bare Galvalume Roofs with their low emittance of 0.06 can be used only on unconditioned buildings when the Cool Roof is required.

Color Solar Refelectivity EmissivityCool Regal White 0.70 0.9Cool Sierra Tan 0.34 0.9Cool Colonial Red 0.31 0.9Cool Dark Bronze 0.28 0.89Cool Weathered Copper 0.30 0.9Cool Zinc Grey 0.39 0.9

For reference only Solar Refelectivity EmissivityBare Galvalume 0.65 0.06

VP Cool Roof Colors (KXL finish only)

Enforcement Policy Solar Reflectivity Emissivity

Energy StarLow Slope (<2:12) N/A 0.07 NoneHigh Slope (>2:12) N/A 0.25 None

ASHRAE 90.1 Commercial1989, 1999 Version2001 Version Credit 0.70 0.752004 Version Credit 0.70 0.75

LEED 2.1Low Slope (<2:12) Credit 0.65 0.90High Slope (>2:12) Credit 0.25 0.90

IECC2000, 2001 Version2003 & 2004 Version Credit 0.70 0.75

Energy Code

National Code Requirements for Reflectivity and Emittance

Cool Roof Enforcement in the CodesCool Roof Enforcement in the Codes

MandatoryMandatory EquivalenceEquivalenceVoluntaryVoluntaryCreditCredit

The Energy Codes will take one of the following positions with respect to the enforcement of Cool Roof compliance with the Energy Efficiently Code requirements.

Check the applicable energy code to determine Check the applicable energy code to determine what that energy code requirements are.what that energy code requirements are.

Maximum Required U-FactorMaximum Required U-Factor Metal roof Metal roof Maximum Required U- Factor Maximum Required U- Factor

requirement has been loweredrequirement has been lowered in ASHRAE in ASHRAE for a conditioned building: for a conditioned building:

U-Factor of U-0.065 & an R-Value of R-19.0.U-Factor of U-0.065 & an R-Value of R-19.0.

The allowable roof type U-Factors in ASHRAE The allowable roof type U-Factors in ASHRAE are the following:are the following:–Through Fastened Roof = U - 0.130 R-13.0Through Fastened Roof = U - 0.130 R-13.0–Standing Seam Roof Standing Seam Roof = U - 0.065 R-19.0 = U - 0.065 R-19.0

Therefore, a Through Fastened Roof with a U-Factor of U-0.130 can not be used on a conditioned building.

Changing Model Energy CodesChanging Model Energy Codes

– ASHRAE 90.1 2001 & 2004ASHRAE 90.1 2001 & 2004– 2004 International Energy Conservation Code2004 International Energy Conservation Code

(IECC) (IECC) – LEED 2.2 (Coming into effect summer of 2005)LEED 2.2 (Coming into effect summer of 2005)– State Energy Codes.State Energy Codes.

• The current Energy Codes are in a The current Energy Codes are in a continuing state of change.continuing state of change.

• The applicable Energy Code should be The applicable Energy Code should be monitored closely to be aware of code monitored closely to be aware of code changes.changes.

ASHRAE 90.1ASHRAE 90.1

– ASHRAE 90.1 – 1989 &1999ASHRAE 90.1 – 1989 &1999

– ASHRAE 90.1 – 2001 (cool roofs ASHRAE 90.1 – 2001 (cool roofs introduced)introduced)

– ASHRAE 90.1 – 2004 (going from ASHRAE 90.1 – 2004 (going from 26 to 8 climate zones)26 to 8 climate zones)

Requirements of ASHRAE 90.1have been changing for Commercial Buildings

IECC - International Energy CodeIECC - International Energy Code

Commercial Buildings Must Meet Commercial Buildings Must Meet Requirements of ASHRAE 90.1Requirements of ASHRAE 90.1

• IECC 2000 IECC 2000 ASHRAE 90.1 – 1989 ASHRAE 90.1 – 1989




ASHRAE 90.1 2004 Code AcceptanceASHRAE 90.1 2004 Code AcceptanceIn 2003, the Department of Energy required all States to certify that their Energy In 2003, the Department of Energy required all States to certify that their Energy Codes for certification enforcement had adopted a version of ASHRAE 90.1.Codes for certification enforcement had adopted a version of ASHRAE 90.1.

ASHRAE 90.1 2005 Code AcceptanceASHRAE 90.1 2005 Code Acceptance

# of States with Their Adopted # of States with Their Adopted ASHRAE Energy Code VersionASHRAE Energy Code Version

For most current status of state energy codes, go to Web Site for Building Code Assistance Project Newsletter

http://www.bcap-energy.org/newsletter.php

Energy Code AdoptionEnergy Code Adoption

20042004 20052005

ASHRAE 2001ASHRAE 2001 55 1515

ASHRAE 1999ASHRAE 1999 1515 1818

ASHRAE 1989ASHRAE 1989 1818 77

Weaker codesWeaker codes 1212 1010

http://www.bcap-energy.org/newsletter.php

Cost Impact on the Roof System of a Conditioned Building

Cost Impact on the Roof System of a Conditioned Building

Walls - R10

Roof – R19

Walls - R10

Roof – R19

Panel Rib Roof

Walls - R10

Roof – R13

ASHRAE 1999

Walls - R19

Painted SSRRoof – R13+R13

Low E Windows

+5 to 20% or more

Walls - R19Walls - R13

Painted SSRSSR RoofRoof – R13+R13Roof – R19

Low E WindowsLow E Windows

+5 to 20% or more

+2 to 47% or more

ASHRAE 2001

Item $$ / SfGalvalume Panel Rib Roof 26 ga

$1.06

Galvalume SSR Roof 24 ga

$1.59

% More 49.94%

R-13 Insulation $0.39

R19 Insulation $0.55

% More 40.91%Panel Rib Roof 26 ga

$1.45

SSR Roof 24 ga $2.13

% More 47.52%

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What Can The Builder Do?What Can The Builder Do?Select the applicable State Select the applicable State and look at the following and look at the following Web sites to get the Web sites to get the current code and contact current code and contact information.information.

DOE: Building State Energy CodesDOE: Building State Energy Codes

www.energycodes.gov/implement/www.energycodes.gov/implement/state_codesstate_codesBuilding Code Assistance Projectwww.bcap-energy.org/map_page.php

Following Slide Shows Information for One State

Available Energy Code Information Available Energy Code Information For OhioFor Ohio

State of OhioState of Ohio

Primary Technical Contact:Steven P. Regolia, Architect

Ohio DOE Status of State Energy Code

State website: www.odod.state.oh/cdd/oee

State Agency/Office Head: John W. Brant, Executive Secretary

Office of Energy EfficiencyOhio Department of Development77 South High Street, 26th FloorP.O. Box 1001Columbus, OH 43216-1001

Sara Ward, Office ChiefOhio Department of Development Phone (614) 466-6797

Other Contacts: Deborah Ohler, Staff Engineer

Reflectivity and Emittance in State CodesReflectivity and Emittance in State Codes

These State Energy Codes call for Reflectivity These State Energy Codes call for Reflectivity and Emittance Values. and Emittance Values. There may be more, but these are the only ones There may be more, but these are the only ones that I am aware of at this time.that I am aware of at this time.

Enforcement Policy

Solar Reflectivity

Emissivity

California MandatoryLow Slope (<2:12) 0.70 0.75High Slope (>2:12) 0.25 0.75

Chicago Energy Code MandatoryLow Slope (<2:12) 0.25 NoneHigh Slope (>2:12) 0.15 None

FloridaCommercial Mandatory 0.65 0.80Residential Credit 0.65 0.80

Georgia Credit 0.70 0.75

State Code Requirements for Reflectivity and Emittance for

Energy Code

CALIFORNIA CALIFORNIA 2005 Building 2005 Building Energy Efficiency Standards Energy Efficiency Standards

Title 24Title 24 Law Effective October 1Law Effective October 1stst 2005 2005 Enforcement is mandatory.Enforcement is mandatory. Conditioned building has to have an approved Conditioned building has to have an approved

Cool Roof Color.Cool Roof Color. To get a building permit, a conditioned To get a building permit, a conditioned

building must be energy efficient and meet an building must be energy efficient and meet an energy budget.energy budget.

Next code change will be the 2008 version.Next code change will be the 2008 version.

The following slides discuss the impact of the new California Energy Code, but the concern exists that the other states may follow the lead that California has taken.

Approved Cool Roof ColorApproved Cool Roof Color

Roof Slope 2: 12 and lessRoof Slope 2: 12 and less – Solar Reflectivity of Solar Reflectivity of 0.700.70– Solar Emittance of Solar Emittance of 0.750.75

Roof Slope over 2: 12Roof Slope over 2: 12 – Solar Reflectivity of Solar Reflectivity of 0.250.25– Solar Emittance of Solar Emittance of 0.750.75

In October 2005, California will require a Cool Roof Color for conditioned buildings that has meet the Reflectivity and Emittance standards which are a factor of the roof slope used.

California Energy Code requires that the Cool Roof Colors are certified and approved by CRRC (Cool Roof Rating Council). The roof panels will have a label showing approval number.

Cool Regal White is the only approved VP Cool Roof color for Low Slope buildings. (The paint suppliers say that, with the current paint technology, no other colors can meet the low slope requirements.)

ASHRAE 90.1 = CA Title 24ASHRAE 90.1 = CA Title 24

CA Title 24 calls for lower Maximum CA Title 24 calls for lower Maximum U-Factor on the roofsU-Factor on the roofs– ASHRAEASHRAE– California Title 24California Title 24

Review of California Title 24 shows that it is an mandatory version of ASHRAE 90.1 2001 with some additional limitations.

Roof Umax 0.065Wall Umax 0.113

Roof Umax 0.051Wall Umax 0.113

• Buildings over 25,000 square feet must Buildings over 25,000 square feet must have energy efficient skylights, doors have energy efficient skylights, doors and windowsand windows

Walls - R19

Low E Windows

+5 to 20% or more

2005 Title 24

Walls - R19Walls - R13

White Painted SSR

Roof – R13+R13Roof – R13+R13Roof – R13+R13

Low E WindowsLow E Windows

+5 to 20% or more

+10 to 86% or more

Galvalume Screw Down

Walls - R10

Roof – R19

Galvalume Screw Down

Walls - R10

Roof – R19

Galvalume Panel Rib

Walls - R10

Roof – R19

Current Title 24

Cost Impact on Roof System For Conditioned Building

Cost Impact on Roof System For Conditioned Building

Item $$ / SfGalvalume Panel Rib Roof 26 ga

$1.06

White SSR Roof 24 ga

$2.27

% More 114.25%

R-19 Insulation $0.55

R-13 & R-13 Insulation

$0.70

% More 28.96%Panel Rib Roof 26 ga

$1.60

SSR Roof 24 ga $2.97% More 85.24%

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CALIFORNIA Title 24 RestrictionsCALIFORNIA Title 24 Restrictionsfor Conditioned Buildingsfor Conditioned Buildings

Screw Down Roofs Don’t Meet U-Value Screw Down Roofs Don’t Meet U-Value Requirement. Requirement.

SSR will be required.SSR will be required. Galvalume Roofs Will not Meet Emittance Galvalume Roofs Will not Meet Emittance

Requirement. Requirement. Only approved Cool Roof Color is Cool Regal Only approved Cool Roof Color is Cool Regal

White for low slope buildings.White for low slope buildings. Colors for high slopes are still being tested.Colors for high slopes are still being tested. More Roof & Wall Insulation will be required.More Roof & Wall Insulation will be required.

CALIFORNIA Title 24 RestrictionsCALIFORNIA Title 24 Restrictionsfor Conditioned Buildingsfor Conditioned Buildings

VP VP light light transmitting skylights are not listed in transmitting skylights are not listed in the energy code products.the energy code products. We are working on We are working on correcting this situation.correcting this situation.

VP VP windowswindows & & doorsdoors do not meet the energy do not meet the energy efficiency requirements.efficiency requirements.

These energy ratings are in process of being These energy ratings are in process of being determined. determined.

The builder has the option of obtaining a The builder has the option of obtaining a commercially available skylight, door, or commercially available skylight, door, or windows which do meet these requirements.windows which do meet these requirements.

California has 16 Climate Zones so each builder will have to meet a different energy requirements based upon the project’s location.

However, individual cities in a climate zone may have different climate zone requirements based upon the climate conditions at that location.

CALIFORNIA Title 24 RequirementsCALIFORNIA Title 24 Requirements

For a For a conditioned buildingconditioned building, to get a , to get a building permit, a Building Envelope building permit, a Building Envelope Energy Calculation will be required Energy Calculation will be required showing that the building is energy showing that the building is energy efficient. efficient.

This Excel spreadsheet will be made This Excel spreadsheet will be made available to VP Builders later.available to VP Builders later.

Building Building Energy Energy

Efficiency Efficiency Calculation Calculation

SpreadsheetSpreadsheet

Building Envelope Tradeoff Equation - Title 24-2005 - Section 143(b)Developed by Architectural Energy Corporation, for CMRC. March 11, 2003

Name of Project: Office Name of Author: VP BuildingsDate: 4/30/2004California Climate Zone 16

RoofType Gross Area U-Factor

Reflect-ance

Emitt-ance

15,000 0.051 0.7 0.75

Floor Type Area U-Factor

(over unconditioned space) - 0.09

Walls Type Gross Area U-Factor

North Wall 1,600 0.113

East Wall 2,400 0.113

South Wall 1,600 0.113

West Wall 2,400 0.113

Total 8,000

WindowsArea U-Factor SHGC

Overhang Depth

Overhang Height

North Window 1,600 0.47 0.47 0 1

East Window 700 0.47 0.36 0 1

South Window 400 0.47 0.36 0 1

West Window 600 0.47 0.36 0 1

Total 3,300

Skylights Type Area U-Factor SHGC

- 0.68 0.68

Calculated Inputs Title-24 ProposedAdjusted roof reflectance 0.70 0.70Window Wall Ratio (All) 40.0% 41.3%Window Wall Ratio (West) 24.2% 25.0%Overhang Projection Factor (N) 0.00 0.00Overhang Projection Factor (E) 0.00 0.00Overhang Projection Factor (S) 0.00 0.00Overhang Projection Factor (W) 0.00 0.00Skylight Roof Ratio 0.0% 0.0%

Results Title-24 ProposedHeat Loss 2,800 2,847 FAILHeat Gain 289,973 279,152 PASS

Both Heat Loss and Heat Gain must pass for compliance.

Metal Building

Glass wo/Curb

Other Floor

Metal Building

Metal Building

Metal Building

Light Mass




Reflect-ance

Emitt-ance

15,000 0.051 0.7 0.75





East Wall 2,400 0.113


West Wall 2,400 0.113

Total 8,000


Overhang Depth

Overhang Height

North Window 1,600 0.47 0.47 0 1

East Window 700 0.47 0.36 0 1

South Window 400 0.47 0.36 0 1

West Window 600 0.47 0.36 0 1

Total 3,300


- 0.68 0.68







Reflect-ance

Emitt-ance

15,000 0.051 0.7 0.75





East Wall 2,400 0.113


West Wall 2,400 0.113

Total 8,000


Overhang Depth

Overhang Height

North Window 1,600 0.47 0.47 0 1

East Window 700 0.47 0.36 0 1

South Window 400 0.47 0.36 0 1

West Window 600 0.47 0.36 0 1

Total 3,300


- 0.68 0.68




Metal BuildingMetal Building

Glass wo/CurbGlass wo/Curb

Other Floor

Metal Building

Other Floor

Metal Building

Metal BuildingMetal Building

Metal Building

Light Mass

Metal Building

Light Mass

Climate Zone is required to be known to be able to use this spreadsheet.

Additional Information on the CD DiskAdditional Information on the CD Disk PowerPoint presentationsPowerPoint presentations

– Cool Roof TermsCool Roof Terms– Cool Roof Web Sites Cool Roof Web Sites – Cool Roof PhysicsCool Roof Physics– CRRC ProgramCRRC Program– Energy Star programEnergy Star program– USGBC LEED Program (2 Versions)USGBC LEED Program (2 Versions)

Excel Building Efficiency SpreadsheetExcel Building Efficiency Spreadsheet HandoutsHandouts

– California Significant ChangesCalifornia Significant Changes– California Standard ChangesCalifornia Standard Changes– BCAP NewsletterBCAP Newsletter– LEED v 2.1 Steel ContentLEED v 2.1 Steel Content– State Energy Code StatusState Energy Code Status– VP Products & Cal Title 24VP Products & Cal Title 24

Documents

Energy Codes & Standards. Do You Know What Is Taking Place In The Energy Codes For The Areas Where You Sell Product?? THE ENERGY CODES ARE CHANGING The