Found 20 results for the keyword(s) ‘Basement, Moisture’

  • Article

    Basement walls -- Moisture & Vapour Barriers

    Do I need to place a vapour barrier against the brick wall, then insulation and then another vapour barrier over that?  The wall does not leak and is fully underground.  Barbara THE VAPOUR BARRIER The vapour barrier is more properly called a vapour retarder. It is designed to stop moisture in t...
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    HOW CAN I STOP CONDENSATION ON THE BASEMENT WALL BEHIND INSULATION?

    First ensure that this is not a leak in the basement wall. Click here for details on Waterproofing a basement wall. Second ensure that the wall is well sealed, especially around electrical outlets and floor and wall joints. Click here for details on Air Sealing. Finally, make sure there is no a...
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    How far down should you insulate on a basement wall?

    As you can see in the first graphic, the soil helps to insulate a basement so there is more heat lost on the top of the basement than on the bottom. That is why the National Building Code requires a minimum level of insulation in a basement that reaches from the floor boards above your head, down...
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    Vapour barriers in basements

    One of our viewers is about to insulate his basement and he has been told that he should not run the vapour barrier all the way to the floor. Fact or fiction? You should run the vapour barrier wherever there is insulation to keep the moisture on the warm side of the wall. And in a basement insta...
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    Good and bad techniques in insulating basement walls.

    The national building code requires a minimum level of insulation in a basement that reaches about two feet below the outside grade level. The objective is to make this storage space a heatable space. Hence some materials and techniques have developed that satisfy this minimum code requirement th...
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    Insulating a foundation with embedded floor joists

      Certain parts of Canada, particularly in the Winnipeg region, have a traditional construction technique that presents serious challenges when you want to insulate a basement -- the ends of the joists are actually embedded in the concrete foundation wall.  Chris, from Winnipeg, asked for some f...
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    Basement Perimeter Drainage and Leaking Foundations

    This article deals with walls below grade, foundation walls.  For insulating above grade cinder block walls see How do you Insulate a Brick and Block construction as well as Insulating an Above Grade Block Wall from the Inside. The best way to prevent water from leaking into the basement is not ...
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    Peeling paint on a foundation wall.

    Michele in Hamilton, Ontario needs to repaint her cinder block walls on the outside of the basement. But a close look at a photo that she sent us showed a lot of deep holes or pock marks in the blocks. Not only the paint was peeling off, but the block itself was breaking off.  This is a sign o...
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    Floor covering in a basement

    I'm asked a lot about covering a floor in a basement. There are several considerations we need to deal with: the hard and cold concrete and maybe with levelling the floor. Of course we need to pay attention to water, either coming from outside the house or from plumbing spills inside the house si...
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    How to check if your furnace oil tank is safe

    Underground tanks are banned Many years ago we buried oil tanks in the ground. Think a minute about how bad an idea that was. When a very old tank developed a leak, we never knew about it and it just leaked oil into the ground for years, creating quite an environmental problem. That is why it is...
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