Why Do Flat Rubber Roofs Have Stones On Them

To help reduce leaks and create a.

Why do flat rubber roofs have stones on them. Having a large flat roof this is something that i pondered on too. The roofing industry has known for quite some time the drawbacks of using traditional asphalt shingles on flat or low pitch roofs. These small stones are worth more than their weight in the protection they offer for underlying roofing materials and the barrier they provide to external elements like ultraviolet rays and harsh weather elements. However rubber roofs have many inherent.

2 to break up the rain into fine mists and keep the noise level down. All roofing contractors are not equal. The stones force it to stay put. Your roofing merchants can supply the stones.

In a typical tar and gravel roof which by the way is gradually being supplanted by gravelless roof systems you put down a layer of tar paper then tar and finally gravel. These materials provide the waterproof barrier that contains and sheds the water to protect the roof structure. Pebbles or small rocks spread several inches thick over the outer roof mem. A layer of pebbles can substantially extend the life of a flat roof.

We had to replace a big portion of our flat roof recently. Though primarily confined to built up asphalt roofing systems it can be applied to single ply epdm rubber based membranes as well. Rubber roofing epdm single ply membranes is the most common flat roofing system in new england ma ct nh ri etc and the rest of us flat roofing marker. The gravel also acts as a protective measure to prevent natural debris such as leaves from flowing towards and clogging the drains of the flat roof instead trapping them in place.

3 to protect the roofing felt from perishing and heat melting the bitumen. For mineral based felting the pebbles are there to help protect the felting as ballast depending on the fitting type and to help prevent water pooling aparantly. Most people refer to a flat roof as a rubber roof. A two ply modified bitumen torch down rubber roof with embedded ceramic granules is the best roofing system on the market.

A flat roof will have several layers of a thin membrane made of tar asphalt and or bitumen material. However both rubber and asphalt will lose plasticizers and other v. The main reason for such popularity of rubber roofs is the lower initial price tag. The stones does 3 things 1 help to keep the roof fire resistance.

A flat roof typically has a rubber or asphalt impregnated membrane. Modified bitumen roofs are a mix of asphalt and rubber with a layer of gravel embedded in the top layer of material during manufacture to provide uv protection. Tar has a low melting point.