Steps For A Modified Flat Roof

The goal of this article is to help building owners architects and contractors decide which commercial roofing options are right for each unique project.

Steps for a modified flat roof.

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. 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. 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. Pros and cons for flat roof materials.

To properly identify a modified bitumen roof you can look at the featured image of this post or the pictures below. If the surface is smooth you may be able to reroof using sheets of modified bitumen or epdm rubber roofing. Flat roofs usually come with a 10 to 20 year warranty but can last 25 years if you. Flat roofs were once exclusively the province of professionals but new materials enable do it yourselfers to install flat roofs.

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. Built up roofing bur was the most common type of flat roof before modified bitumen and membrane roofing were developed. Bur consists of many layers. If your flat roof is covered with gravel you will likely need to hire a professional to reroof it.

Built up roof bur modified bitumen roof mbr and rubber membrane roof epdm.