Showing results 51 - 70 of 70
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Sloped roof with cavity spray foam insulation sprayed on underside of roof deck and covered with sprayed-on thermal or ignition barrier coating.
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Sloped roof with cavity spray foam insulation, strapping, and gypsum board thermal barrier
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Spray foam adhesive provides an extra water resistant layer to the joints and seams on the inside of attics.
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Strengthen an existing roof by applying two-part spray-applied polyurethane foam adhesive to all sheathing and framing joints from the underside of the roof
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The builder installed 1.5 inches of soy-based spray foam on the outside of the walls over the OSB sheathing, then kept a ¾ inch gap between the foam and the brick veneer siding to allow moisture vapor from the bricks to dissipate.
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The existing 2x8 roof rafters were topped with OSB; two layers of 2-inch rigid foam; plywood; ice and water shield at rakes, eaves, and valleys; underlayment; and fiberglass shingles, plus 6 inches of open-cell foam under the decking.
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The existing sheathing boards are removed near the perimeter of the flat roof and pressure-treated plywood is installed at the vertical face of the parapet
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The retrofitted flat roof has PV panels and walking mats installed over the roofing membrane
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The wood blocking for future PV panel installation extends above the surface of the top layer of polyisocyanurate rigid foam insulation installed as part of a flat roof retrofit
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This roof is hurricane proofed with a coated insulated OSB deck sheathing that is caulked and taped at all seams with a water-resistant tape, then fully covered with a peel-and-stick membrane, and asphalt shingles.
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To reduce the risk of condensation on the interior of the roof sheathing in cold weather, the ratio of exterior (above-deck) insulation must be increased as a percent of total attic insulation as outside temperature decreases
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Unvented roof assembly at eave retrofitted with rigid foam, spray foam, and taped top edge of existing house wrap or building paper
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Unvented roof assembly at rake retrofitted with a filler piece and taped top edge of existing house wrap or building paper to seal the top of wall-to-roof transition
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When installing fasteners in roof sheathing, common mistakes include using the wrong size fasteners, missing the framing members, overdriving nails, and using too many or too few fasteners.
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Wind path and uplift force for a gabled roof, a hip roof, and a pyramidal (another variant of a hip) roof design
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Wrong - Roof deck sheathing nails missed the trusses, potentially weakening the roof in high winds.
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Wrong – The flashing of the roof-wall juncture was installed above the roof shingles instead of below the roof shingles; also no kickout flashing was installed.