Credit: Peter Sucheski
The NAHB Research Center has amended and extended advanced framing practices to further improve building envelope performance, including a new technique that reduces thermal bridging at the intersection of exterior and interior walls.
1 Continuous Drywall To allow full sheets of wallboard along perimeter walls, mitigating air leaks and thermal transfer, leave a 1-inch gap between intersecting interior walls. Connect the intersecting top plates with a flat metal connector.
2 Wall Framing 2x6 studs spaced 24 inches on-center create larger cavities for insulation to reduce thermal transfer throught the wall and enable "warm" corners without affecting the attachment of drywall or exterior cladding
3 Lower Ratio Typical wall framing has a wood-to-insulation ratio of about 25 percent. Advanced framing reduces that share to 16 percent to 18 percent, leaving more room for insulation and improved energy performance.
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John McManus is an award-winning editorial director for the Residential Construction Group at Hanley Wood in Washington, D.C. In addition to the BUILDER digital, print, and in-person editorial and programming portfolio, the group includes strategic content direction for AFFORDABLE HOUSING FINANCE, APARTMENT FINANCE TODAY, CUSTOM HOME, EcoHome, MULTIFAMILY EXECUTIVE, and residential architect.
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