What Stones To Use On Flat Roof

In the summer it gets pretty soft and if left to its own devices would flow to the lowest point on the roof.

What stones to use on flat roof.

Two they allow extra space for rooftop equipment like hvac. Both factors can extend the life of your flat roof. One flat roofs are less expensive than sloped roofs. To protect the underlying layer of roofing materials as is the case with built up roofs burs.

Don t go thinking that modern houses with flat roofs only look good though as these innovative designs actually have practical properties as well. In this blog post let s talk about. Of course flat roofs are not flat but have a very slight roof pitch of between 1 4 to 1 2 per foot. 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.

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. There are different types and weights of gravel used on flat roofs for these purposes. If you re going to start a physical business or plan to replace an old roof it s good to know what your options are. Just enough slope to drain water but also flat enough to be a problem if not constructed properly.

Gravel to protect built up. Paving stones can also be added to create walkways which adds value to your property. Gravel is used on flat roofs for two reasons. Specifically there are two main reasons to use a ballasted roof system.

The stones force it to stay put. A wear surface of finely crushed stone granules is usually applied to the top layer of hot tar to protect the built up roof assembly from uv. Ballast is commonly used with roofs made of tar and gravel roof alternatives including ethylene propylene diene monomer epdm polyvinyl chloride pvc and thermoplastic polyolefin tpo single ply flat roofs. To weigh down or secure the roofing material as is the case with single ply flat roofs.