Bitumen Flat Roof Construction

Popular in north america for more than 100 years built up roofing bur systems are composed of alternating layers of bitumen asphalt and fabrics called roofing felts.

Bitumen flat roof construction. Pros and cons for flat roof materials. Homeowners in the fullerton california area who have flat or slightly sloped roofs on their homes will be glad to know that greencal construction offers roofing services for these types of roofs as well as traditional asphalt shingle and tile roofing. Modified bitumen and rolled asphalt roofs. Modified bitumen is a type of asphalt product that can be applied in a number of ways to the roof in both hot and cold temperatures.

From there the flat roof system you choose will determine the materials you apply. Modified bitumen roofs have a lot of advantages over other types of membrane roofing and are often seen as the modern alternative to the built up roof. Greencal offers flat roof repair installation services to homeowners in around fullerton ca. You can use our flat roof calculator to quickly and accurately estimate the cost of replacement.

All three types of flat roofing cost 250 to 350 per square 100 square feet but prices vary according to region and size of the roof. Materials such as layers of fiberglass or polyester are added to the asphalt to add strength to a flat roof. Modified bitumen roofing is a roofing asphalt. What are the different types of flat roofs.

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. Video of the day volume 0. The hot applied asphalt or coal tar pitch blends with the bitumen soaked roof felt and creates a monolithic roof membrane. Built up roof bur modified bitumen roof mbr and rubber membrane roof epdm.

5 50 6 50 per sq. Smucker contracting we have experience with all 4 of the best commercial roofing material types. Burs consisted of alternative layers of heavy building paper and hot tar. Bitumen roof advantages and disadvantages.

One of the longer lasting roofing options for flat roofs is bitumen roofing or a modified bitumen roof. While the lifespan is less than the more advanced options the price point alone can make modified bitumen one of the best flat roof materials for some businesses. 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. At one time built up roofs burs once represented half of all flat roof coverings.

Today modified bitumen mb is king with cap membranes torched on to fuse them to fiberglass reinforced interplies or base coats. The felts are reinforced with either glass fiber mats or organic mats ply sheets and when joined with the bitumen form a durable roofing membrane.