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Found 162 results for the keyword ‘Insulation’

  • 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...
  • Insulation manipulation

    Most of our ordinary fiberglass insulation is a skin and breathing irritant. That is why we wear gloves, long sleeves, a cotton mask and glasses. For a bit more money you can now buy itchless rock wool (Roxal) and even itchless fiberglass. If you are all itchy, pour milk over the affected area...
  • Dust marks following studs on wall -- Ghosting

    Ralph from Red Deer Alberta sees the shadows of every 2x4 and every nail on the inside of the house not long after painting. I don't think he really wanted to hear that we call this "ghosting".\012\012Actually it is caused by thermal bridging; cold following the studs through the insulation and ...
  • Heating an old mobile home.

    Darlene from Charlottetown, PEI wants to put an old 33 foot travel trailer out by the ocean and live in it, but it isn't very warm. How can she winterize this old rig?It was interesting to research the evolution of mobile homes in Canada.From the 70's to the 80's, they almost doubled their amoun...
  • 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...
  • Is it good practice to eleminate the chipboard on the outside of the house?

    Wagish from Brampton, Ontario is worried about the ongoing construction of his new home as they have not put a wooden sheathing on the outside of the house. He asks: "Is the insulation value and strength of the wall compromised by not using the chipboard?".First things first. "Chipboard" should...
  • What should be done with walls full of wood chip insulation?

    Tim from Timmins, Ontario has a 2x4 constructed home with wood chips for insulation in the walls. He wants to know if he can leave it there and insulate over the wall on the inside or should he tear it all out?Wood chips do insulate but only at about R-1.4 per inch. Fibreglass is 3.5 per inch a...
  • LOOSE FILL POURED: VERMICULITE

    For the health controversy on Zonolite, click here. Vermiculite produced after 1990 has no asbestos in it.  Because of the bad reputation it got with Zonolite it is not generally sold as insulation, although it is an excellent insulation with good fire resistance and easy pourability.  You can fi...
  • Is my crawl space insulation right?

    Joe and Joan from St. Thomas Ontario wrote: "Our kitchen has a 2 foot crawl space underneath. We hired a contractor to insulate the floor with pink insulation. He used plastic to hold it up. The kitchen was still not warm enough so we nailed up Styrofoam over the plastic. The following year ...