Flat Roofing Process

There are key differences between constructing a flat roof compared to a pitched roof and it s important to understand the basic criteria.

Flat roofing process.

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. Of course flat roofs are not flat but have a very slight roof pitch of between 1 4 to 1 2 per foot. What is the process of building a flat roof. Just enough slope to drain water but also flat enough to be a problem if not constructed properly.

Bur consists of many layers. The goal of this article is to help building owners architects and contractors decide which commercial roofing options are right for each unique project. Measure your roof and select an appropriately sized epdm membrane. To build a flat roof you ll want to have a thorough understanding of how the process of constructing the flat roof works and the different methods available.

Most standard epdm membranes are 1 2 millimetres 0 047 in thick and 15 by 30 metres 49 by 98 ft max. Built up roofing bur was the most common type of flat roof before modified bitumen and membrane roofing were developed. The starting point involves laying roofing joists across the two upright items which in most cases will be the walls of the structure. Use a measuring tape to measure the length and width of your flat roof.