Asphalt Flat Roof Detail

Click here to read the technical guide introduction click here to read the general information pdf the guides are in pdf format.

Asphalt flat roof detail.

A flat roof s design is both efficient and economical. But now flat roofs often are constructed with fewer layers because of improved waterproofing technology. This could mean flat roofs may not raise the same red flags they used to. Flat roofs are hard to replace.

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. Each document will open in a new window. Epdm is 1 50 per sq foot making it the cheapest single ply membrane. We can even help you find a professional to install it.

Of course flat roofs are not flat but have a very slight roof pitch of between 1 4 to 1 2 per foot. Pvc is 1 90 per sq foot. Experience the total owens corning roofing system and high quality roofing shingles. 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.

Owens corning produces high quality asphalt coating asphalt sealants and adhesives for asphalt shingles. Tpo is 1 70 per sq foot. Just enough slope to drain water but also flat enough to be a problem if not constructed properly. Asphalt roofing systems that really resist structural and thermal movement even in temperatures below 0.

Flat roofs are nothing new nor are some of the proven materials that cover these often expansive roofs such as those found on factories warehouses big and small box stores apartment buildings large public structures and schools universities. 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. 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. 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. Please select a section to open below.