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Correct roof sheathing to framing connection technique; nails into framing.
Correct roof sheathing to framing connection technique; nails into framing.
Correct roof sheathing to framing connection technique; nails into framing.
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Flat roof with cavity spray foam plus loose-fill insulation and gypsum board thermal barrier.
Flat roof with cavity spray foam plus loose-fill insulation and gypsum board thermal barrier.
Flat roof with cavity spray foam plus loose-fill insulation and gypsum board thermal barrier.
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Retrofit an existing roof by installing rigid foam, new moisture and air control layers, new sheathing, and new cladding plus cavity insulation in the roof rafters to create an unvented attic
Retrofit an existing roof by installing rigid foam, new moisture and air control layers, new sheathing, and new cladding plus cavity insulation in the roof rafters to create an unvented attic
Retrofit an existing roof by installing rigid foam, new moisture and air control layers, new sheathing, and new cladding plus cavity insulation in the roof rafters to create an unvented attic
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Right – A roller helps the tape to adhere over seams in the deck sheathing
Right – A roller helps the tape to adhere over seams in the deck sheathing
Right – A roller helps the tape to adhere over seams in the deck sheathing
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Right – Seams in the deck sheathing are sealed with tape
Right – Seams in the deck sheathing are sealed with tape
Right – Seams in the deck sheathing are sealed with tape
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Schematic of exterior insulated roof assembly
Schematic of exterior insulated roof assembly
Schematic of exterior insulated roof assembly
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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.
Sloped roof with cavity spray foam insulation sprayed on underside of roof deck and covered with sprayed-on thermal or ignition barrier coating.
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
Sloped roof with cavity spray foam insulation, strapping, and gypsum board thermal barrier
Sloped roof with cavity spray foam insulation, strapping, and gypsum board thermal barrier
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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
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
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 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
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
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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