Tpo Roof Insulation R Value

High r value 2 5 r.

Tpo roof insulation r value.

For a very good introductory overview article on r value see r values over at the website of. Know exactly how much you need with our project calculators. Protector hd allows easy efficient scoring cutting and snapping which permits fast tight fabrication and all in a low dust environment. R value of roofing materials and building insulation.

R value chart for enerfoil tm rigid foam faced insulation. 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. Tpo roofing costs for an average 20 000 sq. This also means easy hoisting staging and maneuvering around the roof.

Conditioned per atsm c1289 test method astm c5181 2. When determining how much insulation you need don t guesstimate calculate. R value per inch ft f hr btu rsi per millimeter k m w r value for typical installed thickness not per inch source. 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.

Built up roof membrane gravel surfaced membrane and gravel only 0 33. 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. Thickness inches r value in i p imperial rsi r value in metric 0 5. 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.

You should of course see the manufacturer provided technical data sheet for the r value of specific products. Provides significantly more thermal insulation r value than wood fiber or gypsum boards. Here s a handy r value table that covers most types of roof coverings building insulation and a few other materials. National roofing contractors association.

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 the r 30 mark.