Found 99 results for the keyword ‘Roof’

  • How do you insulate a vaulted ceiling?

    Bernice from Midland, Ontario wants to know how to get more insulation into her vaulted, or cathedral ceiling.The common problem with structures like this, that we call "compact roofs", is that there is not usually enough space for a lot of insulation and a lot of ventilation. In fact, when the ...
  • 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...
  • BBS: Raised Heel Trusses

      How do you get enough space above the wall and below the roof for both massive insulation and ventilation? One way in new construction, or even in the rebuilding of a roof, is what we call a Raised Heel Truss. This design forces the overhang of the house further out from the house, but does gi...
  • A slate roof -- made out of high tech polymers.

    Slate roofs are one of the most durable, beautiful and expensive of roofs. Even the maintenance of the roof is expensive.It is very risky to walk on a slate roof, you may crack some slates, and repairing one in the middle of the field is a real job -- I know I grew up in a house with real slate ...
  • MYTH: THE MORE ATTIC VENTILATION IN WINTER THE BETTER.

    Not true for all parts of Canada!In certain regions (most of the data is from the National Research Council in the Saskatoon area) it appears that the only effective way to stop continuous accumulation of frost in the attic is to not ventilate at all during the worst of winter, but to seal the...
  • 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...
  • Can I add new asphalt shingles over one inch of foam insulation?

    Kara lives in BC and has foam insulation over her roof with shingles over the foam. She wants to put on new shingles and questions having them right over the foam.You are right to question that application. The first problem is that shingling nails that have to go through an inch of foam will n...
  • Moisture problems with a new roof over an old roof.

    Dan from Winnipeg, Manitoba writes: "We have an older manufactured home with a basement. Years ago a new roof was put on top of the existing one. It is post & beam with trusses, sheeted in with shiplap and a metal roof put on. The problem is the original metal roof now seems to sweat in th...
  • Finding enough water for the Butchart Gardens

    Many of you have certainly heard of the beautiful Butchart Gardens in Victoria B.C. As you can imagine, when I visit a place like that I want to see more than just the flowers. So, David Clarke gave me a tour of the hidden side of the gardens: where their water comes from. What may surprise yo...
  • Sealing a concrete roof

    Dartmouth, Nova Scotia is home to a peculiar house with a concrete roof. The roof is now leaking and Ron would like to know how to seal it.Many good coatings are available, but all of them will eventually need maintaining and may even develop leaks from weathering -- as has happened with the pre...