Asphalt roofing systems that really resist structural and thermal movement even in temperatures below 0.
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.
Owens corning produces high quality asphalt coating asphalt sealants and adhesives for asphalt shingles.
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Of course flat roofs are not flat but have a very slight roof pitch of between 1 4 to 1 2 per foot.
In general materials used on flat roofs cost less than ones used on sloped ones.
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.
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.
Wind uplift is a primary concern when installing a retrofit single ply roof system rsprs over a structural metal panel roof.
Tpo is 1 70 per sq foot.
But now flat roofs often are constructed with fewer layers because of improved waterproofing technology.
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 hard to replace.
Other flat roof construction details often refer to the types of flat roof coverings.
Pvc is 1 90 per sq foot.
Epdm is 1 50 per sq foot making it the cheapest single ply membrane.
Experience the total owens corning roofing system and high quality roofing shingles.
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.
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.
We can even help you find a professional to install it.
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.
A flat roof s design is both efficient and economical.
This could mean flat roofs may not raise the same red flags they used to.
Modified bitumen and rolled asphalt roofs cost 1 30 2 20 per sq foot depending on the number of plies.
