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7 Best Of Metal Roof Underlayment Over Shingles Free Download. Over the underlayment the shingles or metal is applied. This is by far the most common way to install a metal roof.
Metal Roofing Over Shingles Diy Metal Roof Roofing Diy Metal Roof Over Shingles from www.pinterest.com
This method is much cheaper than having the shingles removed. This membrane should be labeled high temperature to withstand the surface temperature of the roof on a hot summer day. Its installed directly on the roof deck and provides a secondary layer of protection from the elements including rain.
Metal roofs are much lighter than shingles so they are able to be installed over an existing roof.
Jan 13 2012 If your metal roof is to be installed over solid decking or over existing shingles an environmental benefit a layer of quality underlayment between the two is essential. Over the underlayment the shingles or metal is applied. Its installed directly on the roof deck and provides a secondary layer of protection from the elements including rain. Its also able to resist the elements significantly better and is lighter overall in comparison.
