Found 6 results for the keyword(s) ‘Frost, Attic’

  • Article

    Making an X-Ray of your roof

    When there is morning frost or light snow on a roof, you can learn a lot about a heat losses from the house and how to eliminate ice dams and icicles.    What causes problems  Melting the bottom of a snow pack or melting off all snow at the crown of the roof sends water down under the snow to ...
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    Mysterious tracks in an attic.

    Dennis in Calgary, Alberta convinced me to come visit his attic which he was about to add ventilation to, but he had never been up in the attic.This was a very interesting attic, and an interesting home. The cellulose insulation was matted down a bit and had a very strange grid pattern in the to...
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    Frost in the attic is no different than anywhere else. It is caused by warm moist air coming into contact with cold surfaces and dropping its moisture. The problem in attics is primarily one of quantity; in one house frost accumulations of up to fifteen hundred pounds were discovered one co...
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    Overview: Attic Moisture

    Ventilation in a Canadian attic does very little to remove moisture when the temperature in the attic is below freezing. During that time, the moisture is in the form of Ice and the passing air simply won't remove it -- whether you have passive vents or power vents. When things warm up, if the ...
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    Attic Ventilation -- Why and How

    Most people think that the purpose of attic ventilation is to remove moisture from the attic. That may be true in the spring, but the rest of the Canadian year it does other things.In the summer it generally reduces the temperature of the attic, reducing the need for or the cost of air condition...
  • Article

    Should we weather-strip the Attic Hatch?

    Lawrence in Toronto Ontario is wondering if his attic hatch might be letting moisture leak into the attic.Definitely! This hatch should be treated as an outside door and it needs to be weather-stripped and latched down tight. It is usually a very easy job by simply applying some of the adhesive...