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waterproof membrane can solve leak problem in roof

  • Author:Dongsheng-Lili
  • Release on :2016-09-05

waterproof membrane can solve leak problem in roof

You don't have to go this route because you can purchase remarkable peel-and-stick roof underlayments that contain rubberized asphalt. The brand I prefer and just used on my entire roof this past summer is Grace Ice and Water Shield.

Here's what's going on and why your roof is leaking. Heat leaking up from your home is melting the snowpack in the tight roof canyon. The cold weather turns the super-chilled water to ice and the ice pack begins to get thicker and thicker creating a dam quite like Hoover Dam, but a much smaller.

Most roofing materials are designed to work under the influence of gravity. The materials are typically layered with each successive course overlapping the one below it as the materials march up the roof. The ice dam causes water to build up under each layer and it doesn't take long for it to overflow the top of a layer, find gaps in the wood sheathing and pour into your home.

The underlayment I used on my house sticks to the wood sheathing and it sticks to itself. When installed according to the manufacturer's written installation instructions, it forms a waterproof barrier under the finished roofing that covers it. My membrane is so good that it seals to the nail shafts that are used to secure the finished roofing to the sheathing. It's an amazing product.

To fix your leaks permanently, you need to strip off your existing roofing down to the wood sheathing. You need to remove the finished siding on the sides of the dormer. The membrane needs to be installed as they say in the instructions and it needs to lap up at least a foot or more on the sides of the dormer to ensure you never have a leak along that wall. Consider covering the entire side wall of the dormer to the deepest depth snow can build up in this area of the roof.