Also known as the built up roof bur this type of flat roof features three or more layers of waterproof material mixed in an alternating fashion with hot tar and a layer of smooth stone like gravel.
Flat roof material layout.
Flat roof options help to free up internal space and are often cheaper that pitched roof options as they require fewer materials to cover the same roof span.
This flat roofing dominates the market because it s affordable and strong.
We love the flexibility of a flat roof for certain design limitations but they have a bit of reputation for leaks and repairs.
What pitch is a flat roof.
Of course flat roofs are not flat but have a very slight roof pitch of between 1 4 to 1 2 per foot.
There are several methods and materials for the design of the exterior surface of a warm or cold flat roof.
6 roofing materials for flat roofs 1.
Flat roofs are exceedingly popular with those looking to create a cool modern home.
Underneath the basics flat roofs are usually constructed with a ceiling nailed to joists which support a deck usually wood in residential construction a vapor barrier insulation and a roof board.
Hot tar and gravel.
From there the flat roof system you choose will determine the materials you apply.
Compared to older roofing systems epdm weighs lighter.
Ethylene propylene diene monomer epdm epdm is classified as rubber roofing.