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The polyethylene ceiling vapor barrier is sealed to form an air barrier around the exhaust fan in this very cold climate location (≥ CZ 6).

The polyethylene ceiling vapor barrier is sealed to form an air barrier around the exhaust fan in this very cold climate location (≥ CZ 6).
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The purple streaks in this IR camera image indicate air leakage along the top plates, which is allowing cold air to be pulled from the attic into the wall cavities of this interior wall.

The purple streaks in this IR camera image indicate air leakage along the top plates, which is allowing cold air to be pulled from the attic into the wall cavities of this interior wall.
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The retrofitted flat roof has PV panels and walking mats installed over the roofing membrane

The retrofitted flat roof has PV panels and walking mats installed over the roofing membrane
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The rim joists and top plates are air sealed and insulated with open-cell spray foam while the walls are filled with blown fiberglass.

The rim joists and top plates are air sealed and insulated with open-cell spray foam while the walls are filled with blown fiberglass.
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The roof is constructed with a foil-faced radiant barrier sheathing.

The roof is constructed with a foil-faced radiant barrier sheathing.
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The roof trusses and all other framing in this hot-humid climate home is treated with borate for mold and termite resistance.

The roof trusses and all other framing in this hot-humid climate home is treated with borate for mold and termite resistance.
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The seams in the ceiling drywall are sealed from the attic side with spray foam.

The seams in the ceiling drywall are sealed from the attic side with spray foam.
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The simple gable roof is constructed at an unusual 6.55 pitch that allows exactly four and a half sheets of 4-foot- wide coated, taped roof sheathing to be installed as the roof deck with enough space at the peak for a continuous ridge vent.

The simple gable roof is constructed at an unusual 6.55 pitch that allows exactly four and a half sheets of 4-foot- wide coated, taped roof sheathing to be installed as the roof deck with enough space at the peak for a continuous ridge vent.
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The soffit dam and baffle allow air to flow through the vents without disturbing the insulation covering the top plates

The soffit dam and baffle allow air to flow through the vents without disturbing the insulation covering the top plates
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The standard asphalt shingle roof on this Florida home readily absorbs solar energy, allowing it to heat up to 140°F (60°C) as shown in the thermal image on the right

The standard asphalt shingle roof on this Florida home readily absorbs solar energy, allowing it to heat up to 140°F (60°C) as shown in the thermal image on the right
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The steel drip edge flashing is easy to see above the fascia and just below the roofing along all of the roof edges of this home.

The steel drip edge flashing is easy to see above the fascia and just below the roofing along all of the roof edges of this home.
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The thermal boundary for a gable roof can be located at either a) the flat ceiling with a vented attic or b) the roof line for an unvented attic

The thermal boundary for a gable roof can be located at either a) the flat ceiling with a vented attic or b) the roof line for an unvented attic
Video:

The Truth about insulation in a hot climate

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The unvented attic is insulated along the underside of the roof deck with 7 inches (R-49) of closed-cell spray foam, providing vaulted ceilings and a conditioned knee wall space for ducting.

The unvented attic is insulated along the underside of the roof deck with 7 inches (R-49) of closed-cell spray foam, providing vaulted ceilings and a conditioned knee wall space for ducting.
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The varied roof pitches offer multiple options for solar panel placement regardless of home orientation for these production homes in Colorado.

The varied roof pitches offer multiple options for solar panel placement regardless of home orientation for these production homes in Colorado.
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The ventilation space in this vented over-roof keeps the roof cool to prevent ice dams over the unvented attic

The ventilation space in this vented over-roof keeps the roof cool to prevent ice dams over the unvented attic
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The walls and ceilings of this post-and-beam home are filled with netted blown fiberglass.

The walls and ceilings of this post-and-beam home are filled with netted blown fiberglass.
Video:

The Weather Channel - Prepare for High Winds

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The white TPO membrane roof on the row house on the right performs extremely well at reflecting solar energy and maintaining cool surface temperatures while the black EPDM membrane roof on the left heats up rapidly in the sunlight

The white TPO membrane roof on the row house on the right performs extremely well at reflecting solar energy and maintaining cool surface temperatures while the black EPDM membrane roof on the left heats up rapidly in the sunlight
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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

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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There are three potential locations for an attic radiant barrier – adhered to the underside of the roof decking, hanging from the rafters, or on the ceiling insulation

There are three potential locations for an attic radiant barrier – adhered to the underside of the roof decking, hanging from the rafters, or on the ceiling insulation
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There is an exhaust duct vent visible in the roof above this downdraft range hood.

There is an exhaust duct vent visible in the roof above this downdraft range hood.
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These snow guards help to keep snow from sliding off the roof and injuring people below.

These snow guards help to keep snow from sliding off the roof and injuring people below.
CAD File:

Thin-profile attic eave baffle and vent

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Thin-profile attic eave baffle and vent