Why Is There Gravel On Flat Roofs

The gravel is mostly put on flat felt roofs to serve as a heat barrier from the sun otherwise the felt would soften and blister and then when it was cold the creases in it would crack and cause.

Why is there gravel on flat roofs. There are different types and weights of gravel used on flat roofs for these purposes. Gravel is used on flat roofs for two reasons. Flat roofs usually come with a 10 to 20 year warranty but can last 25 years if you build the roofs right and maintain them using commonsense rules. Contractors and builders use gravel on flat roofing for two primary reasons.

To protect the underlying roof materials and to weigh down and secure them. The heat of the day can cause the tar or whatever you used to bubble or an edge can get picked up by the wind. The main reason is to protect the felt bitumen or tar from uv damage which prolongs the life of the roof without this protection the black surface absorbs the heat of the sun to the point of melting. Why do they put pea gravel on top of the tar on a flat roof.

One is to act as ballast to weigh down the covering surface and help prevent it being blown off in high winds. Tar and gravel roofs are ideal for that since they offer a wide variety of protective measures that keep the elements out of a home business. More and more homes and businesses are using flat roofs but in order to ensure those flat roofs are protected the flat roofs must be made of strong and durable materials. The second is to provide.

Once made of tar paper these types of roofs gradually are using more advanced materials such as fiberglass membranes. If you are unsure about the purpose of putting gravel on flat roofs know that there are some really good reasons. However adding gravel to a flat roof must be done after a specialist has inspected the roof and made the necessary recommendation because there are different types of gravels. The most common type used for residential flat roofing is epdm ethylene propylene diene monomer a synthetic rubber sheet material that is also commonly used as a pond liner.

Gravel is an excellent fire. To weigh down or secure the roofing material as is the case with single ply flat roofs. The gravel helps hold the waterproof layer down and protects it from heat and sun. Membrane single ply roofing.

To protect the underlying layer of roofing materials as is the case with built up roofs burs. A gravel or pea shingle on a roof serves two purposes.