Tpo Roofing R Value

Also the quality of different batches of tpo membranes may be questionable as some tpo producers release the product to the end user.

Tpo roofing r value.

1 when joints penetrations detailed appropriately. For a very good introductory overview article on r value see r values over at the website of. Rsi r value système international is the metric equivalent. Everguard tpo prefabricated accessories deliver consistent quality and eliminate the worry and problems often associated with field fabrication.

R value is used in the united states. R value of various materials. Insulation epdm tpo modified bitumen app and sbs built up and metal roofing plus standard and custom accessories. 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.

Heat welded seams provide superior strength. Field fabrication of tpo accessories is time consuming costly and inconsistent and it can lead to unreliable details that compromise a watertight roofing system. 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.

R oll s ize n ote. To convert the r value of a specific thickness of a material to rsi divide the r value by 5 67826. 5 x 100 162 lbs. See also material data sheet msds 1511 or msds 1911.

A tpo roof from the same manufacturer will most likely not be the same as the one produced a few years before or after. The information on this page is based on data considered to be true and accurate based on periodic internal. Short for thermoplastic polyolefin tpo is a single ply roofing membrane that offers excellent performance at a cost effective price. 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. Both types have an r value ranging from 4 r to 6 r per 1 inch of insulation thickness. 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. For example two inches of extruded polystyrene with an r value of 11 has an rsi of 1.

You should of course see the manufacturer provided technical data sheet for the r value of specific products. With firestone you get one source with everything needed for any roof design. 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. As demand increases for heat reflective and energy efficient roofing systems you can rely on tpo single ply roofing membranes to.

Tpo s long term heat uv and natural fungal resistance plus flexibility without need for plasticizers also make tpo a reliable low slope.