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Found 22 results for the keyword(s) ‘Ventilation, Insulation’

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    OVERVIEW: Changing the roof or roof covering on a house

    As I look at my own database, I see that I have almost 100 answers to specific questions about roofs and roofing.  Despite a good search engine, that much scattered information can get confusing.  Let me make just a couple of overview statements to help guide you in getting your existing or new r...
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    Vent Stack Ice Capping or Evaporation : I GET SEWER ODOURS INSIDE THE HOUSE OCCASIONALLY IN THE WINTER.

      This is one of those problems that are not dealt with seriously enough by the building officials in really cold regions.  I have opened a blog space at the bottom of this article for you to add in your case history so we can demonstrate that this is a large and continuing problem.  Take a look...
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    Detailing a Basement Wine Cellar

    John wants to cerate a wine cellar in his basement.  Here I have answered him throughly enough to perhaps help you detail your own cold room, whether it is under a concrete porch, or just built in the corner of the basement -- trying to deal with the questions of insulation, condensation, vapour ...
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    BBS: Raised Heel Trusses

      How do you get enough space above the wall and below the roof for both massive insulation and ventilation? One way in new construction, or even in the rebuilding of a roof, is what we call a Raised Heel Truss. This design forces the overhang of the house further out from the house, but does gi...
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    An alternative to ducting through the attic in a cold climate.

      In my experience, heating ducts that run through attics cause serious problems in snow country. Don't let a contractor talk you into it. In warm climates it is common practice to run heating and air conditioning ducting through attic spaces simply because it is easy to do. Unfortunately this ...
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    MYTH: AN AIR SPACE BETWEEN THE INSULATION AND THE WALL PREVENTS CONDENSATION.

    Often promoted in southern Ontario, this theory has never, to my knowledge, been proven by any government agency or independent researcher in the insulation field. On the contrary, the unanimous opinion seems to be that it will cause, not prevent, condensation.  Even efforts to drain condensation...
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    New addition; roof leak when it snows.

    We caught a consumer in the hardware store and he was asking about the leaking roof on his new addition in the Beaches area of Toronto. Often in that area, a back porch is converted into living space with what we call a "compact roof" -- a roof/ceiling assembly that is about one foot thick with i...
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    Should I open the roof to fix the soffits?

    Gerry is reshingling an open beam low sloped roof that has always given him problems with ice dams. He wants to know if it is worth it to tear up the first four feet, install air sheets and replace the boards? Actually it is a great idea to perfect the over-the-wall section of the roof space any...
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    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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    Insulating a Cathedral Ceiling - OVERVIEW

    Hello Jon, I have a cathedral ceiling with a shingled roof. If I insulate the roof air tight, will the shingles lift and curl as they do on poorly ventilated roofs? The other thought is leaving an 1 1/2 inch space between the roof deck and the insulation  and installing a ridge vent, which give...
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