Found 41 results for the keyword ‘Air Sealing’

  • 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 ...
  • Aluminum tape to seal window frames

    Terry has heard that if you want to stop drafts, you need to take the trim off from around the inside of windows and seal that gap between the drywall and the window frame behind the trim. He suggests simply covering this gap with aluminum duct tape.That is a great idea Terry. Aluminum duct tap...
  • Solving Ice Dam problems.

    Ice Dams are a serious problem throughout Canada, although it varies from year to year as to which region gets hit. Here we visited one of the solution companies who work to seal up the primary cause of ice dams, the warm air leaks into the attic. For more background on the problem check out th...
  • Soundproofing party walls

    Although the Canadian building codes list about 160 acceptable ways to soundproof party walls, it all comes down to taking care of three basic things.Low frequencies travel through the structure, so the more you separate the structure of one apartment from the structure of the other, the more...
  • What to do about rotten 2x6's in a basement concrete floor?

    Martin went to renovate his basement and discovered that he had rotten out 2x6's right in his concrete basement floor. He thought that they simply left the forms for the footing in place when they poured the floor slab. This sounded a bit strange so I sent him the first graphic above that shows ...
  • 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 ...
  • 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 ...
  • 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...
  • WHY DO I HAVE FROST IN THE ATTIC?

    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...
  • Tips to applying window shrink wraps for the winter.

    Shrink to fit winter windows are really great draft stoppers and energy savers for old windows and patio doors.   Plastic has almost no R-value Since plastic and glass have no real R-value, the dead air space created between the plastic and the window is as good as can be created with another ...