Tpo roofing systems 101.
Tpo roofing r value.
As demand increases for heat reflective and energy efficient roofing systems you can rely on tpo single ply roofing membranes to.
1 when joints penetrations detailed appropriately.
Heat welded seams provide superior strength.
R oll s ize n ote.
The information on this page is based on data considered to be true and accurate based on periodic internal.
For example two inches of extruded polystyrene with an r value of 11 has an rsi of 1.
R value is used in the united states.
Thermoplastic polyolefin tpo single ply roofing membranes are among the fastest growing commercial roofing products and have gained praise across the industry for their many performance and installation advantages.
Everguard tpo prefabricated accessories deliver consistent quality and eliminate the worry and problems often associated with field fabrication.
You should of course see the manufacturer provided technical data sheet for the r value of specific products.
Polyiso is a great choice for insulation due to its price and performance and with an r value of 5 5 you would need to install almost 6 inches to hit.
Both types have an r value ranging from 4 r to 6 r per 1 inch of insulation thickness.
Also the quality of different batches of tpo membranes may be questionable as some tpo producers release the product to the end user.
Here s a handy r value table that covers most types of roof coverings building insulation and a few other materials.
With firestone you get one source with everything needed for any roof design.
Insulation epdm tpo modified bitumen app and sbs built up and metal roofing plus standard and custom accessories.
1 000 sq ft 500 sq ft.
To convert the r value of a specific thickness of a material to rsi divide the r value by 5 67826.
Field fabrication of tpo accessories is time consuming costly and inconsistent and it can lead to unreliable details that compromise a watertight roofing system.
2 stated thermal resistance values are based upon conditioning requirements and test methodology found in astm c1289 and astm c518 for foil faced polyisocyanurate insulation.
To convert rsi to r value multiply the rsi by 5 67826.
For a very good introductory overview article on r value see r values over at the website of.
Short for thermoplastic polyolefin tpo is a single ply roofing membrane that offers excellent performance at a cost effective price.
See also material data sheet msds 1511 or msds 1911.
Tpo s long term heat uv and natural fungal resistance plus flexibility without need for plasticizers also make tpo a reliable low slope.
A tpo roof from the same manufacturer will most likely not be the same as the one produced a few years before or after.
Commercial roof insulation recommendations zones 1 3 pima recommended r value r 20 zones 4 6 pima recommended r value r 25 zones.
Rsi r value système international is the metric equivalent.
A single ply roofing system tpo or epdm has a 0 24 0 33 r value with a typical installed thickness level therefore you ll need considerable thickness of insulation to get you to an r 30.
