Showing results 1 - 50 of 170
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A 1- and ½-story home with a room located in the attic and the thermal boundary located at either a) the walls and ceiling of the attic room with small vented attic spaces or b) the roof line for an unvented attic
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A low-sloped shed roof with the thermal boundary located at either a) the flat ceiling with a vented attic or b) the roof line for an unvented attic
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A simple vented attic with good air-sealing of the drywall ceiling air barrier, air flow from soffit vents to ridge vents protected by ventilation baffles, and lots of insulation covering the attic floor is unlikely to encourage ice dams.
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A site-built rafter roof with a raised top plate allows for more insulation underneath.
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A typical Las Vegas hot-dry climate home made of wood frame construction and insulated with R-25 expanded polystyrene externally over a drainage plane, with an unvented wood frame insulated attic and roof assembly.
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Air seal floor joist cavities under kneewall with rigid foam, plywood, or OSB caulked in place
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Air-Impermeable Insulation for Condensation Control in Unvented Attics, per IRC Table 806.5.
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An IR camera image shows gaps around HVAC flue pipes allow conditioned air to leak through blown fiberglass into the attic
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Batt insulation is installed in two layers in perpendicular directions against the baffle to full required insulation height
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Batt insulation is installed in two layers with offset seams against the baffle to full code-required insulation height
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Buried ducts are laid on the floor of a vented attic then covered with spray foam and blown attic floor insulation
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Clean the attic floor of debris prior to installing new attic insulation. Use baffles to provide a path for ventilation air entering the attic from the soffit vents
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Closed-cell spray foam insulation covers the attic floor to provide a continuous air control layer.
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Design the roof with raised heel trusses to allow full insulation over the top plates of the exterior walls.
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Detail of an unvented cathedralized attic showing air-impermeable spray foam insulation plus batt insulation installed on the underside of the roof deck.
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Flat roof with cavity spray foam plus loose-fill insulation and gypsum board thermal barrier.
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High-density closed-cell spray foam insulates the attic of this home in New Orleans.
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ICF walls and an attic sealed and insulated to R-63 on the underside of the roof deck with 10 inches of open‐cell spray foam plus 2.7 inches of closed‐cell spray foam provide a complete thermal break around this home.
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IECC Climate Zone 2A: Unvented Attic with Spray Foam at Roof Deck, 2x6 Wall/CMU Wall, Elevated Slab
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IECC Climate Zone 2A: Unvented Attic with Spray Foam at Roof Deck, 2x6 Wall/CMU Wall, Elevated Slab
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