Tpo Roof Insulation R Value

The higher the r value the greater the insulation performance.

Tpo roof insulation r value.

R value of various materials. When determining how much insulation you need don t guesstimate calculate. You should of course see the manufacturer provided technical data sheet for the r value of specific products. Built up roof membrane gravel surfaced membrane and gravel only 0 33.

R value measures how well certain building insulation materials can resist heat. R value of roofing materials and building insulation. Know exactly how much you need with our project calculators. Depending on where you live and the part of your home you re insulating walls crawlspace attic etc you ll need a different r value.

National roofing contractors association. Provides significantly more thermal insulation r value than wood fiber or gypsum boards. 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. Here s a handy r value table that covers most types of roof coverings building insulation and a few other materials.

For a very good introductory overview article on r value see r values over at the website of. Tpo roofing costs for an average 20 000 sq. 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 the r 30 mark. This also means easy hoisting staging and maneuvering around the roof.

Conditioned per atsm c1289 test method astm c5181 2. Typical recommendations for exterior walls are r 13 to r 23 while r 30 r 38 and r 49 are common for ceilings and attic spaces. Protector hd allows easy efficient scoring cutting and snapping which permits fast tight fabrication and all in a low dust environment. West roofing systems installs single ply membrane roof.

R value per inch ft f hr btu rsi per millimeter k m w r value for typical installed thickness not per inch source. 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.