Tpo Roof Membrane R Value

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 roof membrane r value. Here s a handy r value table that covers most types of roof coverings building insulation and a few other materials. Always check with your local code authority. 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. These standards define cool roofs in california to have a minimum three year aged reflectance of 0 55 and a minimum thermal emittance of 0 75 for low sloped nonresidential buildings.

On a 1 600 sq ft. Tpo roofing costs for an average 20 000 sq. Roofing m em brane provides the benefits of all three m aterials. As demand increases for heat reflective and energy efficient roofing systems you can rely on tpo single ply roofing membranes to.

You should of course see the manufacturer provided technical data sheet for the r value of specific products. Across the us homeowners who installed a tpo roof membrane report spending about 5 6 75 per square foot. 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. Here s a video of the west roofing systems team installing a tpo single ply membrane roofing system.

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

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. Foot commercial roof it will usually cost between 3 50 and 7 50 per square foot in materials and labor to install a typical single ply membrane commercial roofing system. 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. Material and installation costs.

For a very good introductory overview article on r value see r values over at the website of. Tpo 45 mil membrane tpo 60 mil membrane tpo 80 mil. Most common insulation is iso or eps foam board. Geographic location more expensive areas will have overall higher labor.