Why Stones On Flat Roof

Large commercial and industrial buildings with flat roofs often have a layer of larger stones applied over the asphalt for the same reason.

Why stones on flat roof.

The gravel provides a better grip for foot traffic when conducting maintenance or repairs. The first is to protect the underlying layer of roofing materials on built up roofs burs and the second is to secure or weigh down the roofing material as is the case with single ply flat 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. Flat roofs are durable.

That s all there is to it. The gravel prevents sun hail errant baseballs etc from damaging the membrane the all important moisture seal created by the tar paper and tar. You may notice that a tar and gravel roof is installed on many low slope or flat roof commercial buildings. My regards to mom.

Contractors and builders use gravel on flat roofing for two primary reasons. Specifically there are two main reasons to use a ballasted roof system. A flat roof is water resistant so you do not have to worry about water damage. Both factors can extend the life of your flat roof.

The gravel also acts as a protective measure to prevent natural debris such as leaves. The risk of a fallout decreases when you opt for a. The stones keep the tar paper in place and prevent it from buckling or blowing away in a high wind. The most important job that the stone does is to prevent the elements from destroying the shingles in just a couple of years.

If you are using a flat concrete roof then you are using a roofing system that holds up against heavy winds.