Roof Ballast Depth

2 the membranes tend to pull at their perimeter ties raising and stretching the.

Roof ballast depth.

The gravel in a ballasted roof helps absorb heat preventing the sun from heating the roof materials below and making the roof more energy efficient. Generally loose laid ballasted roofing systems are not recommended or at least discouraged for three reasons. Ballast stone traps a lot of dirt making patching difficult. Magazine and roofing southwest although single ply roofs inherently have sun protective qualities ballast provides an extra layer of protection from uv rays.

The weight on a ballasted roof can be from 10 to 25 pounds per square foot meaning the substructure must be designed specifically to carry more weight than other roofing systems. Extremely difficult to find a leak in this system since the membrane is well hidden. It has a very low slope between 1 4 to 1 2 inch per foot so that it drains water. 1 a leak is very difficult to locate because the water runs freely in numerous directions and for longer distances under the loose laid membrane.

But such a low slope holds snow and water much longer than a steeply pitched roof and therefore needs a very different material to stay watertight. Adds a lot of weight to the roof system typically 10 15 pounds per square feet. To learn more about selecting a commercial roofer in cleveland ohio simply fill out the form on this page and a member of our team will be in touch. Drawbacks of a ballasted roof system.

Though not as common as they used to be ballasted roof systems still prove to be a viable solution for today s commercial roof needs. Or you may call us at 440 946 2233.