Building Plans for the Energy Star Thermal Bypass Checklist

How to Build an Energy Star Home: Construction Details That Help You to Build Tight Houses — The First Time


SECTION 1: OVERALL AIR BARRIER and THERMAL BARRIER ALIGNMENT


1.1 Overall Alignment Throughout Home
Air sealing strategy (lower)DOWNLOAD: PDF | DWG
Air sealing strategy (upper)DOWNLOAD: PDF | DWG
Overall alignment (lower)DOWNLOAD: PDF | DWG
Overall alignment (upper)DOWNLOAD: PDF | DWG


1.2 Garage/Living Space Separation — Rim Joist

1" rigid foam with 1x3 wood furringDOWNLOAD: PDF | DWG
1" rigid foam with 2x2 wood furringDOWNLOAD: PDF | DWG

Free Sample!
1-1/2 in. rigid foam/2x4 sleepersDOWNLOAD: PDF | DWG


1.3 Attic Ventilation Solutions

Thin-profile attic baffleDOWNLOAD: PDF | DWG
1in. rigid foam baffleDOWNLOAD: PDF | DWG
1in. Exterior rigid foam baffleDOWNLOAD: PDF | DWG


1.4 Slab-edge Insulation
Monolithic Slab w/ 3/4 in. rigid foamDOWNLOAD: PDF | DWG
Monolithic Slab w/ 1 in. rigid foamDOWNLOAD: PDF | DWG
Monolithic Slab w/ 1.5 in. rigid foamDOWNLOAD: PDF | DWG


BEST PRACTICES — ENCOURAGED. NOT REQ'D:

1.5 Air Barrier At All Band Joists (Climate Zones 4 and higher)
Air sealing upper-floor band joistDOWNLOAD: PDF | DWG
Air sealing with 1 1/2" rigid foamDOWNLOAD: PDF | DWG
Air sealing with spray foamDOWNLOAD: PDF | DWG


1.6 Minimize Thermal BridgingHeat flow that occurs across more conductive components in an otherwise well-insulated material, resulting in disproportionately significant heat loss. For example, steel studs in an insulated wall dramatically reduce the overall energy performance of the wall, because of thermal bridging through the steel.
3D advanced framing conceptDOWNLOAD: PDF | DWG
2'-0" module layout conceptDOWNLOAD: PDF | DWG
Stacked framing conceptDOWNLOAD: PDF | DWG
Complete Advanced Framing Package
Complete Structural Insulated Panel (SIP) Package


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SECTION 2: WALLS ADJOINING EXTERIOR WALLS OR UNCONDITIONED SPACES


2.1 Wall Behind Shower/Tub
Thin sheathing behind showerDOWNLOAD: PDF | DWG
Rigid foam behind showerDOWNLOAD: PDF | DWG
Wall behind tub w/ corner chaseDOWNLOAD: PDF | DWG
Thin sheathing behind tubDOWNLOAD: PDF | DWG
Rigid foam behind tubDOWNLOAD: PDF | DWG
Corner vertical chaseDOWNLOAD: PDF | DWG


2.2 Wall Behind Fireplace
Fireplace over cantilevered floorDOWNLOAD: PDF | DWG
Fireplace on platformDOWNLOAD: PDF | DWG


2.3 Insulated Attic Slopes/Walls
Attic truss over unconditioned spaceDOWNLOAD: PDF | DWG
Attic truss over conditioned spaceDOWNLOAD: PDF | DWG


2.4 Attic Knee Walls
Knee wall inside conditioned spaceDOWNLOAD: PDF | DWG
Knee wall defines conditioned spaceDOWNLOAD: PDF | DWG


2.5 Skylight Shaft Walls
Air sealing at Skylight ShaftDOWNLOAD: PDF | DWG


2.6 Wall Adjoining Porch Roof
Air Sealing for Porch Roof- 1/2 FoamDOWNLOAD: PDF | DWG
Air Sealing for Porch Roof- 1 FoamDOWNLOAD: PDF | DWG


2.7—StaircaseDOWNLOAD: PDF | DWG
2.8 —Double WallsDOWNLOAD: PDF | DWG


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SECTION 3: FLOORS BETWEEN CONDITIONED AND EXTERIOR SPACES


3.1 Insulated Floor Above Garage
1 1/2 in. rigid foam, 1x3 furringDOWNLOAD: PDF | DWG
1 in. rigid foam, 1x3 furringDOWNLOAD: PDF | DWG
1 in. rigid foam, 2x2 furringDOWNLOAD: PDF | DWG
1 1/2 in. rigid foam, 2x4 furringDOWNLOAD: PDF | DWG


3.2 Cantilevered Floor
1 1/2 in. rigid foamDOWNLOAD: PDF | DWG
1 in. rigid foamDOWNLOAD: PDF | DWG


SECTION 4: SHAFTS


4.1 —Sealed duct shaftDOWNLOAD: PDF | DWG
4.2 — Pipe through top plateDOWNLOAD: PDF | DWG
4.2 — Wire through top plateDOWNLOAD: PDF | DWG
4.3 —Flue Shaft (plan view)DOWNLOAD: PDF | DWG


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SECTION 5: ATTIC/ CEILING INTERFACE


5.1 Attic Access Panel
Air-tight attic hatchDOWNLOAD: PDF | DWG


5.2 Attic Drop-down Stair
Air Sealing at Pull-Down Attic StairDOWNLOAD: PDF | DWG


5.3 Dropped Ceiling/Soffit
Dropped SoffitDOWNLOAD: PDF | DWG
Built-out soffitDOWNLOAD: PDF | DWG
Cabinet soffitDOWNLOAD: PDF | DWG
Duct soffitDOWNLOAD: PDF | DWG


5.4 Recessed Lighting Fixtures
Recessed Lighting - Site-Built BoxDOWNLOAD: PDF | DWG
Recessed Lighting - Pre-made BoxDOWNLOAD: PDF | DWG


5.5 Whole-house Fan
Air-sealing detailsDOWNLOAD: PDF | DWG


SECTION 6: COMMON WALLS BETWEEN DWELLING UNITS


6.1 Common Wall Between Dwelling Units
Common Wall Between UnitsDOWNLOAD: PDF | DWG


Detail Packages that can make old houses energy efficient:

  • Basement Remodeling
  • Sealed Crawl Spaces
  • Energy Star Air Sealing
  • Deep Energy Retrofit
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