Asphalt Flat Roof Detail

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 flat roof detail.

Cad details document name pdf dwg download all cad construction details 37 1 mb 3 4 mb mc01 identification of roof areas 694 kb 167 kb mc01a single layer underlayment 678 kb 302 kb mc01b double layer underlayment 711 kb 322 kb mc02 vent pipe flashing 626 kb 349 kb mc03 valley. But now flat roofs often are constructed with fewer layers because of improved waterproofing technology. Other flat roof construction details often refer to the types of flat roof coverings. Please select a section to open below.

Owens corning produces high quality asphalt coating asphalt sealants and adhesives for asphalt shingles. Each document will open in a new window. Pvc is 1 90 per sq foot. Of course flat roofs are not flat but have a very slight roof pitch of between 1 4 to 1 2 per foot.

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. Wind uplift is a primary concern when installing a retrofit single ply roof system rsprs over a structural metal panel roof. 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. 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.

A flat roof s design is both efficient and economical. Asphalt roofing systems that really resist structural and thermal movement even in temperatures below 0. In general materials used on flat roofs cost less than ones used on sloped ones. Experience the total owens corning roofing system and high quality roofing shingles.

We can even help you find a professional to install it. Due to their size the technical guides have been divided into sub sections. Click here to read the technical guide introduction click here to read the general information pdf the guides are in pdf format. Modified bitumen and rolled asphalt roofs cost 1 30 2 20 per sq foot depending on the number of plies.

Just enough slope to drain water but also flat enough to be a problem if not constructed properly. This could mean flat roofs may not raise the same red flags they used to. Flat roofs are hard to replace. Tpo is 1 70 per sq foot.