Asphalt Flat Roof Detail

A waterproof exterior layer is essential and there are a number of options including bitumen based felt or asphalt epdm rubber and pvc based systems as well as cold applied liquid systems bitumen coverings.

Asphalt flat roof detail.

Tpo is 1 70 per sq foot. But now flat roofs often are constructed with fewer layers because of improved waterproofing technology. In general materials used on flat roofs cost less than ones used on sloped ones. Modified bitumen and rolled asphalt roofs cost 1 30 2 20 per sq foot depending on the number of plies.

Let owens corning help you determine when it is time for a new roof and then let us help you choose the shingles for your roof that are right for you. Experience the total owens corning roofing system and high quality roofing shingles. Please select a section to open below. This could mean flat roofs may not raise the same red flags they used to.

Epdm is 1 50 per sq foot making it the cheapest single ply membrane. A flat roof s design is both efficient and economical. Of course flat roofs are not flat but have a very slight roof pitch of between 1 4 to 1 2 per foot. Due to their size the technical guides have been divided into sub sections.

Some observers suggest it s harder to replace a flat roof than a traditional pitched shingle roof because of the labor required to remove its layers especially on older flat roofs. Wind uplift is a primary concern when installing a retrofit single ply roof system rsprs over a structural metal panel roof. Other flat roof construction details often refer to the types of flat roof coverings. Astm e 1592 physical testing was performed on three test roof assemblies in order to determine the wind uplift resistance of an rsprs installed over existing structural metal panel roof systems fastened directly into purlins.

Asphalt roofing systems that really resist structural and thermal movement even in temperatures below 0. Firestone provides a wide range of accessories and installation tools in addition to high quality built up membranes suitable for almost any flat or low slope roof condition. We can even help you find a professional to install it. Just enough slope to drain water but also flat enough to be a problem if not constructed properly.

Click here to read the technical guide introduction click here to read the general information pdf the guides are in pdf format. Pvc is 1 90 per sq foot. Flat roofs are hard to replace. Owens corning produces high quality asphalt coating asphalt sealants and adhesives for asphalt shingles.