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Lag-Bolted L Brackets for Mounting PV Panels to Roof Decking

Lag-Bolted L Brackets for Mounting PV Panels to Roof Decking
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Lightning Protection Systems

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Limited attic access may make it necessary to use a bore scope when inspecting for missing air barriers and insulation in existing buildings.

Limited attic access may make it necessary to use a bore scope when inspecting for missing air barriers and insulation in existing buildings.
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Locations and causes of common water intrusion problems in homes.

Locations and causes of common water intrusion problems in homes.
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Locations of Fasteners for Asphalt Shingles in high-wind areas

Locations of Fasteners for Asphalt Shingles in high-wind areas
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Loss of the fascia cover in high winds exposes the vinyl soffit to entry by wind-driven rain.

Loss of the fascia cover in high winds exposes the vinyl soffit to entry by wind-driven rain.
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Low-slope roof assemblies constructed of two deck sheathing layers sandwiching rigid foam, and topped with mechanically fastened membrane

Low-slope roof assemblies constructed of two deck sheathing layers sandwiching rigid foam, and topped with mechanically fastened membrane
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Madrona Passive House | Solar PV Array

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Masonry wall interior retrofit with parge coat, fluid-applied water control layer, rigid mineral wool, wood-framed wall with cavity insulation, smart vapor barrier, and wood or metal service cavity

Masonry wall interior retrofit with parge coat, fluid-applied water control layer, rigid mineral wool, wood-framed wall with cavity insulation, smart vapor barrier, and wood or metal service cavity
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Metal birdstop is installed at the eaves of a tile roof to keep out birds, bats, rodents, and flying insects

Metal birdstop is installed at the eaves of a tile roof to keep out birds, bats, rodents, and flying insects
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Metal cap flashing is installed over the roof parapet and extends down over the roofing membrane

Metal cap flashing is installed over the roof parapet and extends down over the roofing membrane
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Metal roofs provide a durable weather-resistant roof cladding

Metal roofs provide a durable weather-resistant roof cladding
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Metal straps tie the roof rafters to the top plate for additional resistance to severe storms.

Metal straps tie the roof rafters to the top plate for additional resistance to severe storms.
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Missing flashing around windows can allow water to get into the wall causing extensive damage to wall materials.

Missing flashing around windows can allow water to get into the wall causing extensive damage to wall materials.
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Missing step flashing and kickout flashing caused rotting of wall and roof sheathing, fascia, framing, and plywood cover below the eave at this complicated roof juncture.

Missing step flashing and kickout flashing caused rotting of wall and roof sheathing, fascia, framing, and plywood cover below the eave at this complicated roof juncture.
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Moisture Management in Residential Construction Series - Building Enclosure: Roof Overview

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Nailing and ridge ventilation for roof sheathing used as a structural diaphragm in high-wind and seismic hazard areas.

Nailing and ridge ventilation for roof sheathing used as a structural diaphragm in high-wind and seismic hazard areas.
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New coated OSB roof sheathing is installed over the existing sheathing of the flat roof and taped at the seams to provide a continuous air barrier

New coated OSB roof sheathing is installed over the existing sheathing of the flat roof and taped at the seams to provide a continuous air barrier
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New roofs are not immune to moss, which can spread quickly under favorable conditions like constant shade and low roof pitch.

New roofs are not immune to moss, which can spread quickly under favorable conditions like constant shade and low roof pitch.
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New siding was installed over old siding, but no flashing or trim was installed and the old siding became saturated when water leaked around the windows.

New siding was installed over old siding, but no flashing or trim was installed and the old siding became saturated when water leaked around the windows.
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Observed roof bracing for gable roof overhang and recommended modification

Observed roof bracing for gable roof overhang and recommended modification
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On top of the ice-and-water shield, the builder installed horizontal beams that were raised 6 inches off the deck to allow room for spray foam insulation.

On top of the ice-and-water shield, the builder installed horizontal beams that were raised 6 inches off the deck to allow room for spray foam insulation.
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One of the roof truss to top plate seismic bracing options in the IRC

One of the roof truss to top plate seismic bracing options in the IRC
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Open-web floor joists provide space for ducts between the floors of a two-story home.

Open-web floor joists provide space for ducts between the floors of a two-story home.