Found 101 results for the keyword(s) ‘Roof’

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  Eleminating ice dams

  Nancy in Manitoba has bad ice dams on her roof. She sent me a great sketch of her whole attic arrangement, complete with knee walls and cathedral ceilings, not to mention a dormer -- and there is no ventilation in the roof in front of the dormer.The guidelines for eliminating ice dams are sim...
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  How do you paint a metal roof.

  Marie-Paule from Labelle, Quebec gave me the greatest compliment. She sent in a question in French and said that she watches the program all the time but doesn't understand English. I guess our models and graphics are doing some good.She was asking me how to paint her metal roof because she was...
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  How is a "light well" different from a "skylight"?

  I think it would be fair to define a "skylight" as a window in the roof that you can see the sky and clouds through. Some of them now use frosted glazings, so you can't quite see through them, but they are still basically designed like a window with a deep skylight well below them.A "light w...
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  Inspecting and Maintaining Asphalt & Gravel Flat Top Roofs

  Most flat top roofs are made up of layers of asphalt, roofing paper, asphalt, roofing paper, asphalt, roofing paper, and then gravel. Although most leaks are caused by damaged or poor flashings, the built up membrane itself can get old and worn.The gravel serves to keep the UV rays of the sun aw...
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  WHAT CAN I DO ABOUT ICE FORMATION ON THE EDGE OF THE ROOF?

  Recent research from Canada Mortgage and Housing Corporation has pointed out new priorities for solving ice dam problems. Common practice for years has been to address ice dams with more ventilation. It was when this practice wasn?t working very well that the researchers took a closer look a...
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  ROOF INSULATION

  When we talk about insulating roofs we are usually dealing with situations in which there is no attic: either it doesn't exist or it has been converted into heated living space. So, we are talking about cathedral ceilings, flat, and basin-type roofs. Cathedral roofs are slanted and drain l...
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  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...
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  SHOULD THE ATTIC BE VENTILATED IN THE SUMMER?

  Yes. The attic absorbs a great deal of heat from the sun during the summer and becomes much hotter than the rest of the house. The better your attic is insulated, the less this heat build-up will affect the temperature of the house. Venting the attic replaces this heated attic air with air...
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  CONFUSION: POWER ATTIC VENTILATORS ARE NOT RECOMMENDED FOR WINTER USE. WHY?

  The main reason for not recommending power vents in the attic is that the attic is usually not well sealed, and the power vent, in sucking air out of the attic, creates a negative pressure in the attic. This negative pressure sucks warm air and humidity through the ceiling leaks into the att...
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  WHAT KIND OF ATTIC VENT IS BEST?

  Power vents and turbines are not a good idea in northern climate attics. (search keyword "attic" for the title " CONFUSION: POWER ATTIC VENTILATORS ARE NOT RECOMMENDED FOR WINTER USE. WHY?")That leaves gravity vents, vents that allow warm air in the attic to rise and escape out the top of t...