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Found 55 results for the keyword ‘Attic’

  • 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...
  • Should I install a turbine vent on my roof?

    Vent yes, turbine no. A vent on the top of the roof is designed to let hot moist air out of the attic. It is critically important that air can get into the attic as low down as possible, ideally up through the soffits. This air then feeds up and out the roof top vents. When there are little o...
  • 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...
  • 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 ...
  • Why do shingles cup and curl long before their warranty date? And what is CSA certification?

    Click here for the BP Class Action Suit relating to failing organic based asphalt shingles. Asphalt shingles should be able to take a lot of heat and cold, over and over again. So why do some suddenly curl up, asks Craig from Point-Claire, Quebec?Cold climate shinglesProbably the first thing to u...
  • Radiant Heating Systems for Homes

    Radiant Heating and Convection Heating are the two primary types of ways we heat our houses. FORCED AIR HEATINGConvection heating means moving hot air -- what we usually call a forced air heating system simply heats air and moves it around the house through a system of fans and ducts.  Forced air...
  • 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...
  • Is it normal to find no insulation in a century home?

    Gaye has discovered that there is no insulation in the walls of his century old home. Is this normal?Actually it is rare to have no insulation at all even in these old houses, although what insulation they do have may appear a bit strange.Often in central Canada you will find sawdust in the atti...
  • What is the maximum duct length from a bathroom fan?

    Mike writes: "I'm renovating my bathroom and plan to install a fan. The shower is on one side of the room and the bath is on the opposite wall so I plan to put the fan in the middle of the room. What is the maximum amount of hose I can use to vent outside?"You shouldn't have any problem going ...
  • How do I properly vent a range hood?

    Vern has a range hood on an inside wall and is wondering if he could just use the hollow wall cavity or should he line it, and could he just vent into the attic because the attic itself is vented. There are actually a lot of interesting questions there Vern. First remember that there is a lot of...