Showing results 1 - 12 of 12
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All holes through the top plates should be sealed with canned spray foam to prevent conditioned air from leaking into the attic.
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Examples of many common ceiling penetrations that will be difficult to insulate and air seal in this cathedral ceiling.
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Ice dams form when warmth from the attic causes roof snow to melt and flow to roof eaves where it refreezes at the colder overhang and forms a buildup of ice causing more snowmelt to puddle where it can wick back through shingles and leak into the attic
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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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Lack of insulation over the top plate can lead to ice dam formation on a low sloped roof.
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The icicles and the bare spot along the left roof ridge indicate that heat from the second-story room may be heating the underside of the roof deck, melting the snow and likely leading to ice dam formation.
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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).
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The ventilation space in this vented over-roof keeps the roof cool to prevent ice dams over the unvented attic
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These snow guards help to keep snow from sliding off the roof and injuring people below.
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This home has heat loss through the roof, leading to ice dam formation and structural issues during winter months.
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Warm air that leaks into the attic through unsealed light fixtures or other bypasses can melt snow on the roof leading to ice dam formation.