Flat Roof Explained

Build up tar and gravel roof.

Flat roof explained.

The three types of flat roofing materials are. The preferred design of a flat roof fall is 1 40 although this can vary and be anywhere down to 1 80. Once made of tar paper these types of roofs gradually are using more advanced materials such as fiberglass membranes. Although the name indicates a horizontal surface a slight angle must be included to allow for the drainage of rainwater.

Mainly provides a thermal barrier but can also have sound proofing or fire resistant properties. We specialize in the 2 ply modified bitumen torch down system because of its durability features. A flat roof is almost exactly that a roof that has so little slope or pitch that it appears to be completely flat although they do have a very slight pitch to allow for water runoff. Underneath the basics flat roofs are usually constructed with a ceiling nailed to joists which support a deck usually wood in residential construction a vapor barrier insulation and a roof board.

Flat roofs can be made from many types of material although epdm rubber or tpo and pvc roofing membranes are the most common along with tar and gravel roll roofing or metal sheets. Epdm rubber ethylene propylene diene monomer a common use is in vehicles. This video explain the three commonly flat roof materials used. Modified bitumen cap sheet roofing was developed in the 1960s as a replacement technology for.

This is the outer surface of the roofing which resists water. The membrane roof is the latest roofing technology and is also the roof of choice in. 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. A flat roof s design is both efficient and economical.

From there the flat roof system you choose will determine the materials you apply. The term flat roofing describes a roof surface that is as almost completely level. Epdm rubber flat roofs metal roof rubber roofs tpo roofing membrane. It is done by layering 3 or more stacks of waterproof material with hot tar in between and then ballasting the top with a layer of gravel pebbles.

Different types of flat roof material options single layer membrane roof. Flat roofs are nothing new nor are some of the proven materials that cover these often expansive roofs such as those found on factories warehouses big and small box stores apartment buildings large public structures and schools universities. Five commercial flat roof systems explained. Leave a comment roof repairs by naas ferreira august 19 2015.

This is by far the cheapest type of flat roofing you can get. Built up roof bur the traditional hot tar and gravel roof is built from three or more plies of waterproof material alternated with hot tar and ballasted by a layer of smooth river stone. Door seals window seals trunk seals and sometimes hood seals the synthetic rubber is also used for flat roofs. It can be made from a wide range of.

The built up roof or bur is the traditional hot tar style of roofing that was very popular at one time.