Found 10 results for the keyword ‘Flat Roof’

  • How to remove moss from an asphalt and gravel roof.

    2009 update: Safer's De-Moss, specifically made for removing moss, is still available but considered a controlled herbicide in many jurisdictions. If you cannot find it in stores, check GOOGLE.You can't mechanically remove this moss without bothering all the gravel, perhaps even the roof. You n...
  • SHOULD I ADD VENTILATION TO A FLAT TOP OR BASIN TYPE ROOF?

    Be careful, we are still learning how to deal with these difficult structures after adding roof space insulation. The problem is that the air volume and its flat thin shape do not efficiently dry out the roof space as does the large vertical air space of a peaked roof.The cardinal rule is to ...
  • Weather Restrictions: Asphalt & Gravel flat roofing

    Connect to your favourite weather forecaster and look for the following conditions:   Category: Roofing     Product: Asphalt & Gravel flat roofing Temperature Limitations: Roofing materials flow best above +10 C (+50 F) -- emergency repairs can be made down to -10 C (+14 F) Rain Limitatio...
  • Plastic Cement for Roofing

    Getting something to stick to asphalt or asphalt coated materials is a unique problem. Asphalt driveways have their own specific crack sealers and roofing materials generally use what we call "Plastic Cement". (One exception to this is a specially formulated polyurethane adhesive that will work...
  • Weather Restrictions: Elastomeric Sheet Membranes for Roofing

    Connect to your favourite weather forecaster and look for the following conditions:   Category: Roofing     Product: Elastomeric Sheet Membranes Temperature Limitations: Material and workmen are most flexible above +10 C (+50 F)  -- emergency repairs can be made down to -10 C (+14 F) Rain Lim...
  • A look at a bad roofing job and how to hire a roofing contractor.

    Annie has three roofs on her house, a shingled roof in the front part followed by an asphalt and gravel flat roof and then an elastomeric membrane flat roof over her back porch. They all seem to leak. The asphalt roof is only six years old, installed by someone who advertised in the local paper...
  • 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...
  • Elastomeric Membrane "flat" roofs.

    We visited Anne's roof in a previous show where she had three different types of roofs, no flashings and inadequate transitions between each roof, and of course water buckets in the house. In fact one roof was only six years old, the centre part in good shape but the flashings letting in enough ...
  • OVERVIEW: Built-up Felt/Asphalt/Gravel v.s. Torch Sealed Elastomeric for a flat residential roof -- which one is best?

    "Have listened to you for years. I HAVE AN IMPORTANT QUESTION. A membrane roof has a longer guarantee 20 years, the material looks unimpressive, what is it's longevity beyond that? An asphalt roof has a 10 year guarantee but with good maintenance can last 3 times longer. My old roof is at least 4...
  • Is standing water on a flat top roof a problem?

    Yes it is a problem Lorne, except for roofs in some desert areas where evaporating water is part of the air conditioning design, and the roof is specially designed like a swimming pool. For the rest of us, standing water will lead to a premature ageing of the roofing material, whatever material i...