Different types of flat roofs
Flat roofs are one of the modern roof models but to prevent water infiltration, flat roof do require a good maintenece..
Flat roofs aren’t as glamorous and/or popular as its newer counterparts, such as slate, tile, or copper roofs. They are even as widely used but it requires more attention. If you would go for this type of roof, you should know how flat roof systems are designed and how important it should be regularly inspected and maintained.
Flat roofing systems have different types, and they are commonly classified into four types. Listed in order of increasing durability and cost, they are: roll asphalt, single-ply membrane, multiple-ply or built-up, and flat-seamed metal.
Used since the 1890s, asphalt roll roofing generally consists of one layer of asphalt-saturated organic or fiberglass base felts that are applied over roof felt with nails and cold asphalt cement and usually covered with a granular mineral surface. The seams are typically covered over with a roofing compound. It can last about 10 years.
One of the lates roofing material is the single-ply membrane. It is often used to replace multiple-ply roofs. 10 to 12 year warranties are typical, but proper installation is crucial and maintenance is still required.
Another type is the BUR which is commonly known as built-up roofing or Multiple-ply. It is made of overlapping rolls of saturated or coated felts that are intersperesed by layers of bitumen. It is then surfaced with a ballast, granular roofing or tile pavers. It used to protect the materails beneath it against unconditional weathers. BURs are designed to last 10 to 30 years, which depends on the materials used.
The last type is the flat-seamed roofing which has been existing since the early 1900s. Made from small pieces of sheet metal soldered flush at the joints, it can last many decades depending on the quality of the material, maintenance, and exposure to the elements.
If you wanted to know more about the different kinds of roofing or materials being used whether it’s about flat roofing material or other types of roofing like installing corrugated metal roofing. Then give Chapman Roofing a call. Just visit our site for a free roofing consultation.
Processing your request, Please wait....
