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Found 50 results for the keyword ‘Sealing’

  • WHAT SEALING MATERIAL SHOULD I USE?

    There is a wide and confusing choice, and no one material will do for every job. The questions to ask are: What will it stick to? Can I paint it? How long will it last? You won't be saving money if you have to replace the material often; some caulking materials will harden and crack after on...
  • I'VE SEALED THE WINDOW AND THERE'S STILL A DRAFT. WHY?

    The space between the finished and rough frame of the window (hidden behind the window trim) is a major source of heat loss and hidden moisture damage inside walls. The trim should be sealed or removed and the gap filled and sealed if this was not done at the time of construction. Just stuffing...
  • INSULATING WALLS

    A respectable rewinterizing job need not include the addition of insulation into the walls. They are the most difficult (and expensive) parts of the house to re-insulate, and usually have the poorest financial payback of all re-winterizing tasks because:-- Walls are finished on both sides, and i...
  • Liquid Elastomeric Roof Coatings

    Paint like coatings have been around for a long time claiming to extend the life of your roof for years. Until the late 90's they actually didn't do much more than camouflage a dying leaking roof -- the problem being that things move up there from full sunlight to cold nights, from hot summers t...
  • "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...
  • Sealing ductwork in an attic

    Often furnace heating and air conditioning duct work is run though an attic and then back down into the house. Personally I think that this is a really bad idea unless there is absolutely no alternative route. Why? First, most duct work is not sealed where it goes through the ceiling, so a lot...
  • WHAT ARE THE RULES FOR APPLYING INSULATION IN THE ATTIC?

    -- Take care of air barriers, ventilation and vapour barriers before insulating. Check out these three topics in the Search Tab above.-- Don't block the eave vents with insulation.-- Do cover the top of the outside wall.-- Don't put plastic foam on top of porous insulations (batts, loose fill) a...
  • 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...
  • 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 ...
  • Picking a caulking gun

    Some caulking guns do have some nifty new details on some of them, like a knife for cutting off the tip of the cartridge or wires to poke holes in the tubes.I don't know why, but the wires are often not long enough to do the job if you cut just a little bit off of the tip. Bad planning. (Years la...