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Bath Fan Vented To Attic
This is a problem because moisture from the exhaust fan can potentially condensate
on the underside of the roof sheathing and eventually deteriorate the wood. This
situation can also be a source for ice dams.
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Mold on Underside of Roof Decking
Warm, moist house air leaked into this attic, condensed, and rotted away the
underside of this roof decking. Major repair work here!
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Air Leakage Around Can Light
As indicated by this infrared camera scan. House air leakage can occur, potentially
causing ice dams, roof deck rot, and mold in the attic.
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Electrical Penetration Through the
Basement Ceiling to the Attic
Unsealed electrical and plumbing penetrations that lead to attic spaces can potentially
allow house air leakage to cause structural damage.
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Ice Damming
This occurs when the warm reaches your attic and melts the snow. And when the
water reaches the cold roof edge it refreezes. Then the water is forced back under the
shingles and into the ceilings and/or walls. Replacing your roof won't solve the
problem, you need a professional to investigate.
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Settled and/or Missing Insulation
This infrared photo indicates settled or missing wall insulation. Dark areas indicate
missing insulation, light areas look well insulated.
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Bad vs. Good
Infrared imaging indicates the left rim joist cavity as poorly insulated (darker) and the
right cavity well insulated (lighter). Much of the insulation R-value is being lost in the
left cavity.
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Compressed Fiberglass Batt Insulation
Incorrectly installed batts can result in lost R-values.
Details like this can create durability and comfort issues
and cost you money in the long run.
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Blown-in Cellulose Insulation
This picture shows a complex wall nicely
insulated with blown-in cellulose insulation.
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Open Hearth Fireplace
Open hearth fireplaces can energy hogs. Here's why: wood fires need oxygen - lots of
it. Large amounts of heated household air flows through the fireplace and up the
chimney when a fire is blazing. A conventional wood fireplace will use up to ten times
the amount of air required by a typical oil or gas furnace.
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