Tpo Roofing R Value

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Tpo roofing r value.

R value is used in the united states. Rsi r value système international is the metric equivalent. R value of various materials. As demand increases for heat reflective and energy efficient roofing systems you can rely on tpo single ply roofing membranes to.

The information on this page is based on data considered to be true and accurate based on periodic internal. Everguard tpo prefabricated accessories deliver consistent quality and eliminate the worry and problems often associated with field fabrication. 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.

1 when joints penetrations detailed appropriately. 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. To convert rsi to r value multiply the rsi by 5 67826. For example two inches of extruded polystyrene with an r value of 11 has an rsi of 1.

Field fabrication of tpo accessories is time consuming costly and inconsistent and it can lead to unreliable details that compromise a watertight roofing system. P roduct sizes dim ensions and w idths are nom inal values and are subject to norm al m anufacturing packaging tolerance and variation c olors f u ll r oll s ize f u ll r oll w eigh t h alf r oll s ize h alf r oll w eigh t w hite t an g ray 10 x 100 322 lbs. Here s a handy r value table that covers most types of roof coverings building insulation and a few other materials. 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.

Both types have an r value ranging from 4 r to 6 r per 1 inch of insulation thickness. 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. Insulation epdm tpo modified bitumen app and sbs built up and metal roofing plus standard and custom accessories. See also material data sheet msds 1511 or msds 1911.

1 000 sq ft 500 sq ft. Commercial roof insulation recommendations zones 1 3 pima recommended r value r 20 zones 4 6 pima recommended r value r 25 zones. 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. To convert the r value of a specific thickness of a material to rsi divide the r value by 5 67826.

For a very good introductory overview article on r value see r values over at the website of. 5 x 100 162 lbs. Heat welded seams provide superior strength. You should of course see the manufacturer provided technical data sheet for the r value of specific products.

Short for thermoplastic polyolefin tpo is a single ply roofing membrane that offers excellent performance at a cost effective price.