Gravel On Silicone Roof

Tar and gravel roofs add substantially more weight to the building structure.

Gravel on silicone roof.

Remove loose dirt and gravel moss and debris from the roof surface and power wash. The gravel provides a better grip for foot traffic when conducting maintenance or repairs. Certain roof systems can adversely impact the appearance of silicone. By using the existing roof as a base the surecoat roof system can add an additional 10 20 years of life back into an existing gravel roof without tear off.

Be sure that the surface is clean and dry before starting application of product. Roofs that might need a primer but not for adhesion. Large cracks may be filled with a sandable filler. Top problems with tar and gravel commercial roofs added weight to structure.

Built up roofs or burs also called a tar and gravel roof is a well established and popular style of flat roof that is made up of alternating layers of roofing felt or fiberglass and asphalt that is applied with heat which combine to make a long lasting sturdy roofing system. A surecoat roof eliminates 100 of roof seams withstands ponding water conditions and is uv stable for the entire life of the system 10 20 years. Do not use a silicone caulk. All major cracks joints and seams should be caulked with blue max trowel grade liquid rubber.

Beyond the first list there are also some roofs that might need a primer but it isn t for adhesion. Because the gravel holds and releases heat the layer of gravel on a bur flat roof can both help water evaporate and keep heat away from the underlying roof structure. Per square in heavier than before. Gravel roof disadvantages on the other hand gravel roofs are hot energy inefficient heavy moisture trapping and unstable.

After you add the layers of tar supporting fabrics and the top layer of gravel your roof can be an extra 5 10 lbs. While the roof will still adhere fine.