Found 40 results for the keyword ‘Air Barriers’

  • Just how do you install windows properly?

    The reality is that there is not just one good way to install windows, but there are certain principles that must be taken care of with any installation to prevent cold air or water leakage later. Basically a window installation must shed most of the water with the siding, what does get through ...
  • What is an air tight electrical box?

    We all know that electrical boxes are the often the source of cold air drafts. They are equally the route by which warm moist air escapes from our houses. In fact, the National Research Council of Canada has calculated that up to 30 litres of water can pass through a single electrical box in one ...
  • SHOULD I PUSH OR PULL MY CAULKING GUN?

    It's largely a matter of personal choice or habit while the video above will show you the WHY of good caulking technique.  Pushing forward forces the compound into small cracks and helps it to stick on smooth surfaces. Pulling is easier for filling large cracks, and leaves a bulge which allows ...
  • Moisture problems with a new roof over an old roof.

    Dan from Winnipeg, Manitoba writes: "We have an older manufactured home with a basement. Years ago a new roof was put on top of the existing one. It is post & beam with trusses, sheeted in with shiplap and a metal roof put on. The problem is the original metal roof now seems to sweat in th...
  • 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 ...
  • HOW DO I FIND AIR LEAKS?

    First, the fancy way: infrared photography can identify temperature changes on different parts of the house, and thus heat losses. With proper interpretation of the photograph you can know which heat losses are caused by air leaks and which by missing or soaked insulation. This is like an X-ra...
  • Caulking indoors -- part of Air Sealing your home

    Caulking joints on the outside of the house will not save you energy and will not stop cold air drafts. That is because almost all sidings are vented specifically to allow the wind behind the siding to help keep the wall dry. If you do not have a modern sealed house-wrap all around your house und...
  • What is a "drainage layer" for a window installation?

    Janice from Thornhill, Ontario writes: I'm having some wood/fiberglass windows installed and would like to know the product you recommend as the moisture barrier between the outside capping and inside insulation. Your website recommends installing such a barrier but no specific product is mentio...
  • "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...
  • Air tight electrical boxes

    Vapour Barriers should go on the "Warm in Winter" side of the insulation so that they can stop all the moisture in the air from going through the wall, but stop it where it is still warm and there will be no condensation. The problem is that a lot of air, and a lot of moisture can go through ele...