Insulation epdm tpo modified bitumen app and sbs built up and metal roofing plus standard and custom accessories.
Tpo roofing r value.
To convert rsi to r value multiply the rsi by 5 67826.
R value of various materials.
R oll s ize n ote.
Here s a handy r value table that covers most types of roof coverings building insulation and a few other materials.
Both types have an r value ranging from 4 r to 6 r per 1 inch of insulation thickness.
1 when joints penetrations detailed appropriately.
Tpo s long term heat uv and natural fungal resistance plus flexibility without need for plasticizers also make tpo a reliable low slope.
Short for thermoplastic polyolefin tpo is a single ply roofing membrane that offers excellent performance at a cost effective price.
Rsi r value système international is the metric equivalent.
Heat welded seams provide superior strength.
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.
Field fabrication of tpo accessories is time consuming costly and inconsistent and it can lead to unreliable details that compromise a watertight roofing system.
To convert the r value of a specific thickness of a material to rsi divide the r value by 5 67826.
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.
5 x 100 162 lbs.
1 000 sq ft 500 sq ft.
See also material data sheet msds 1511 or msds 1911.
Also the quality of different batches of tpo membranes may be questionable as some tpo producers release the product to the end user.
As demand increases for heat reflective and energy efficient roofing systems you can rely on tpo single ply roofing membranes to.
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.
R value is used in the united states.
Everguard tpo prefabricated accessories deliver consistent quality and eliminate the worry and problems often associated with field fabrication.
For example two inches of extruded polystyrene with an r value of 11 has an rsi of 1.
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.
Commercial roof insulation recommendations zones 1 3 pima recommended r value r 20 zones 4 6 pima recommended r value r 25 zones.
Tpo roofing systems 101.
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.