Showing results 301 - 350 of 1073
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Headers over windows on non-load-bearing walls are open to allow room for insulation.
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House wrap is sealed at all seams and overlaps flashing to serve as a continuous drainage plane over the exterior walls.
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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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Hurricane force winds that breach external windows and doors can then cause failure of the entire building due to internal pressures on walls and roof.
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Hurricane straps, hold-down connectors, and bolts help to transfer loads from the building’s walls to its foundation, increasing resistance to vertical and horizontal pressures acting on the building from wind, waves, or ground movement.
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HVAC ducts, cavities used as ducts, and combustion inlets and outlets may pass perpendicularly through exterior walls but shall not be run within exterior walls unless at least R-6 continuous insulation is provided on exterior side of the cavity
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Ice dams formed by melting of snow on roofs can affect roofs, walls, ceilings, siding, and insulation.
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ICFs provide continuous wall insulation from the roof to the footing with very little thermal bridging
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Identify what materials will constitute the continuous air barrier around the building envelope.
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IECC Climate Zone 1A: 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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IECC Climate Zone 2A: Unvented Attic with Spray Foam at Roof Deck, 2x6 Wall/CMU Wall, Elevated Slab
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If HVAC duct must be installed in an exterior wall, separate it from the exterior with at least R-6 of continuous rigid insulation
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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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Improper flashing can allow rain water into walls, causing significant damage
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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 cold climates, install slab edge insulation when pouring slab on grade foundations.
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In high wind areas, provide lateral support to masonry end walls to resist high winds.
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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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In hot climate zones, shade building surface with vegetation for passive cooling.
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In this exterior wall retrofit of a masonry brick home, first the brick was covered with a fluid-applied water and air control layer (white), then 2x4 furring strips and two layers of rigid foam insulation, then 1x4 furring strips to attach cladding to
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In this gut rehab, drywall was removed then a sprayer-applied sealant was used to seal all large cracks and seams and then the 2x4 walls were filled with spray foam.
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In two-story homes, the air barrier separating the wall insulation from the porch attic is sometimes missing
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In warm-humid climates, do not install Class 1 vapor retarders on the interior side of air-permeable insulation in above-grade walls, except at shower and tub walls.
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Inadequate amount of insulation installed with compression, misalignment, and voids
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Incorrectly done seismic retrofit, the plywood sheathing is not nailed to the mud sill and therefore it is not providing any shear strength
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Infrared imaging shows cold conditioned air pouring out of the open floor cavities under this attic kneewall into the hot unconditioned attic
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Infrared thermography during depressurization testing reveals air leakage at corner of spray foam-insulated room where wood-to-wood seams in framing were not air sealed