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Detail Library

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 1×3 wood furringDOWNLOAD: PDF | DWG

1″ rigid foam with 2×2 wood furringDOWNLOAD: PDF | DWG

Free Sample!

1-1/2 in. rigid foam/2×4 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 Bridging

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, 1×3 furringDOWNLOAD: PDF | DWG

1 in. rigid foam, 1×3 furringDOWNLOAD: PDF | DWG

1 in. rigid foam, 2×2 furringDOWNLOAD: PDF | DWG

1 1/2 in. rigid foam, 2×4 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:

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