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Found 40 results for the keyword(s) ‘Air Barriers’

  • Article


    The smoke test described in the previous answer should be used to verify the presence of typical leaks and discover those peculiar to your own house. Before sealing, read the section on Ventilation to avoid any future condensation problems. The leaks high in the house are not necessarily the lar...
  • Article

    What is Air Sealing all about?

    Sealing air drafts, both inside warm air escaping out and outside cold air sneaking in, is one of the most important things you can do to your house. It will both save you heating dollars and protect the structure of your house. This animation gives you a quick and visual overview of the task at ...
  • Article

    Cold window frames and window condensation

    Shawn asked why he always has condensation on his windows. Check "condensation" in the database and you will see a lot about high humidity in the house and the need for one sort of ventilation or another. Here I wanted to look closely at another cause of condensation -- extra cold spots on the wi...
  • Article

    Where to find WEATHER-STRIPPING that will fit your window/door?

    Weather-stripping is used to seal air leaks at any opening in the house that moves -- doors, windows, and traps. If you need to be convinced of the necessity of doing a good job of weather-stripping, check out Air Barriers in the search tab above -- or look at your last heating bill.   Much of ...
  • Article

    What is the difference between a vapour barrier and an air barrier?

    It's become very important to understand the difference between a vapor barrier and an air barrier. If we completely seal a polyethylene sheet on the warm side of the insulation, we call it a combined air/vapor barrier. But it's possible to put the vapor barrier on the warm side of the insulati...
  • Article

    Weather Restrictions: Acoustical Sealant

    Connect to your favourite weather forecaster and look for the following conditions:   Category: Adhesives     Product: Acoustical Sealant Temperature Limitations: Product must be above +5 C (+40 F) -- but surface can be below freezing. Rain Limitations: Apply to a dry surface. Wind Limitatio...
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    Insulating an above grade block wall from the inside

    This article deals with a block wall above grade.  For a below grade block wall see Basement Perimeter Drainage and Leaking Foundations.   Bryan is faced with a totally un-insulated cinder block wall with 1x2 strapping and a plaster covering.  He is thinking about stripping it back to the block...
  • Article


    False. Vapour barriers, together with air barriers, prevent moisture from escaping into the walls. In this sense vapour barriers make you more aware of the quantity of moisture you have generated in your house. Condensation problems are caused by generating too much moisture and/or having too ...
  • Article

    "Sealants", caulking and other confusing vocabulary

    Sealants, caulking and other confusing vocabularyThere are all kinds of "sealants" used in construction.What we normally call a "caulking" is properly called a sealant -- a thick material that cures to a flexible solid designed to "seal" the space between two materials -- particularly two materia...
  • Article

    ICYNENE - a spray foam insulation that excels in saving energy.

    Any insulation that is properly installed to provide R-20 of insulation will save just as much energy as another insulation installed to R-20. So why have I accepted to do media work for one insulation company over another?Because there are many ways that we loose energy in a home and therma...