Tpo Roofing R Value

Both types have an r value ranging from 4 r to 6 r per 1 inch of insulation thickness.

Tpo roofing r value. You should of course see the manufacturer provided technical data sheet for the r value of specific products. R oll s ize n ote. A tpo roof from the same manufacturer will most likely not be the same as the one produced a few years before or after. Rsi r value système international is the metric equivalent.

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. Tpo roofing systems 101. 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.

For example two inches of extruded polystyrene with an r value of 11 has an rsi of 1. Also the quality of different batches of tpo membranes may be questionable as some tpo producers release the product to the end user. Short for thermoplastic polyolefin tpo is a single ply roofing membrane that offers excellent performance at a cost effective price. Everguard tpo prefabricated accessories deliver consistent quality and eliminate the worry and problems often associated with field fabrication.

To convert rsi to r value multiply the rsi by 5 67826. Here s a handy r value table that covers most types of roof coverings building insulation and a few other materials. 5 x 100 162 lbs. See also material data sheet msds 1511 or msds 1911.

R value of various materials. With firestone you get one source with everything needed for any roof design. 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. Tpo s long term heat uv and natural fungal resistance plus flexibility without need for plasticizers also make tpo a reliable low slope.

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. For a very good introductory overview article on r value see r values over at the website of. Commercial roof insulation recommendations zones 1 3 pima recommended r value r 20 zones 4 6 pima recommended r value r 25 zones. 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. R value is used in the united states. 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. 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.