Showing results 51 - 100 of 354
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Critical connections for providing a continuous load path in buildings and storm shelters
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Drywall was removed and the existing 2x4 walls were filled with 3.5 inches of dense-packed cellulose. Outside, the ½-inch plywood was topped with house wrap, 1.5 inches closed-cell rigid foam, 1x3 furring strips, and fiber cement siding.
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Each floor of this two-story modular home is constructed in a factory, including the 2x6, 24-inch on-center walls, R-21 fiberglass batt cavity insulation, and rigid exterior foam, housewrap, windows, and trim, then connected on site.
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End wall failure under hurricane force winds due to inadequate bracing of the gable end wall.
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Engineered studs of wood mixed with resin provide very straight, strong studs for the 2x6 walls.
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Example A of a gable truss and gable end wall bracing for a home in a hurricane region
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Example B of a gable truss and gable end wall bracing for a home in a hurricane region
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Example of a truss bracing requirement tag that some truss manufactures place strategically onto the truss to remind installers
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Example truss bracing for resisting wind loads as determined by design software used by truss manufactures
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Fill in the hole left by the missing top plate with a rigid air blocking material or rolled batt insulation that is spray foamed in place
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Framing is built around the window before exterior rigid foam is installed on the exterior walls around the window.
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Gaps at shared common walls can be a significant source of air leakage in multi-family buildings
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Headers over windows on non-load-bearing walls are open to allow room for insulation.
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How to properly anchor a new home to its foundation with foundation sill plate, stem wall, and footing
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ICF bricks are stacked to form hollow walls that are reinforced with steel rebar before the concrete is poured in
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ICFs provide continuous wall insulation from the roof to the footing with very little thermal bridging
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Improper continuous load path design lacking bracing results in the failure of gable end walls under high wind conditions.
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In areas prone to high winds and hurricanes, double vertical “jack trim” and horizontal “header” and “sill” studs are recommended on all sides of window and door openings.
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In high-wind regions, special hardware is used for most framing connections; toe-nailing is not acceptable.
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Install continuous top plates or blocking at the tops of walls adjacent to conditioned space to minimize air leakage.
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Installing ladder blocking at interior-exterior wall intersections rather than three solid studs in the exterior wall as the supporting surface allows room for insulation in the exterior wall.
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Instead of solid timber headers over windows, insulated headers can be used consisting of prefabricated structural insulated panels or site-fabricated with two sheets of plywood sandwiching a layer of rigid foam.
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Instead of solid timber headers over windows, the headers can be insulated by using a sheet of plywood or one piece of solid timer on the exterior with a layer of insulation to the inside.
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Insulated header made of one piece of plywood aligned with exterior wall, with room for insulation to inside
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Insulated header made of two pieces of plywood that sandwich a layer of rigid foam insulation
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Insulated headers can be hung with metal hangers instead of jack studs to reduce lumber usage
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Insulating sheathing is extended up to the roof rafters and sealed around the framing with spray foam as part of this exterior wall retrofit