Steps For A Modified Flat Roof

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.

It is an evolution of asphalt roofing and is easy to install compared to the older style of tar and gravel. Built up roofing bur was the most common type of flat roof before modified bitumen and membrane roofing were developed. 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. Pros and cons for flat roof materials.

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. A flat roof is not flat it just has a very low slope. Built up roof bur modified bitumen roof mbr and rubber membrane roof epdm. Bur consists of many layers.

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. Flat roofs were once exclusively the province of professionals but new materials enable do it yourselfers to install flat roofs. Flat roofs usually come with a 10 to 20 year warranty but can last 25 years if you.

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