R Value Of Tpo Roof Membrane

A recent study of everguard tpo roofs installed between 8 and 16 years ago found they all performed above astm standards for newly manufactured tpo.

R value of tpo roof membrane.

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. 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. Roofing m em brane provides the benefits of all three m aterials.

Geographic location more expensive areas will have overall higher labor. Supplemental testing physical properties astm test method standard for astm d 6878 min jm tpo 60 mil result dynamic puncture d 5635 n a pass 25 joules static puncture d 5602 n a pass 44 lb 20 kg impact resistance of bituminous roofing systems d 3746 n a pass minor indentations reflectance. Across the us homeowners who installed a tpo roof membrane report spending about 5 6 75 per square foot. Material and installation costs.

Like pvc roofs tpo systems also use the hot air welded seams technology to make the roof durable and leak free. 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. R value of various materials. 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 a very good introductory overview article on r value see r values over at the website of. Tpo roof system life expectancy 7 to 20 years. This is equivalent to 8 000 10 800 keep in mind that your total cost may be higher or lower depending on a number of important factors including. Gaf analyzed membrane samples from roofs across the us and studied thickness over scrim surface cracking and the ability to repair aging tpo membranes.

A recent study of everguard tpo roofs installed between 8 and 16 years ago found they all performed above astm standards for newly manufactured tpo. However problems with the membrane formulation are a source of many issues. Please note that the r values for roof membranes shingles tiles air films and roof deck materials might or might not be permitted by your local code to be included when total roof assembly r value is being calculated for the purpose of satisfying energy code requirements. You should of course see the manufacturer provided technical data sheet for the r value of specific products.

Gaf analyzed membrane samples from roofs across the us and studied thickness over scrim surface cracking and the ability to repair aging tpo membranes. All data represents tested values. Always check with your local code authority.