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.
Steps for a modified flat roof.
A bottom layer or two of insulation board multiple intermediate layers of tar or asphalt alternated with layers of roofing felt and a top layer of gravel.
Flat roofs were once exclusively the province of professionals but new materials enable do it yourselfers to install flat roofs.
If the surface is smooth you may be able to reroof using sheets of modified bitumen or epdm rubber roofing.
Pros and cons for flat roof materials.
Today s variety of flat or low slope commercial roofing options roof pitches ranging from 12 to 3 12 is no longer simple and has grown considerably in the last 50 years.
If your flat roof is covered with gravel you will likely need to hire a professional to reroof it.
Bur consists of many layers.
Built up roof bur modified bitumen roof mbr and rubber membrane roof epdm.
Just because a roof is classified as a flat roof that is a roof with a slope of less the 2 12 does not mean it is a modified bitumen roof.
To properly identify a modified bitumen roof you can look at the featured image of this post or the pictures below.
Basic steps of modified bitumen roofing installation modified bitumen roofing is a form of membrane flat roofing.
Built up roofing bur was the most common type of flat roof before modified bitumen and membrane roofing were developed.
Flat roofs usually come with a 10 to 20 year warranty but can last 25 years if you.