Pvc Roofing R Value

Insulation is important because it saves energy by reducing heat loss.

Pvc roofing r value.

R value of various materials. The following table is in metric form. Guarantees are available up to 20 years when using everguard pvc 60 mil membrane. Heat welded seams for greater reliability.

Provides significantly more thermal insulation r value than wood fiber or gypsum boards. Additional r value for a masonry wall constructed using these materials needs to add the insulating value of additional wall components typically included such as 1 solid foam polyisocyanurate r 8 extruded polystyrene r 5 expanded polystyrene r 4 or 1 of perlite r 2 7 and for an exterior air film winter no wind r 0 17 an interior air film again no air movement r 0 68 3 4 of. High reflectivity for greater energy savings. Tpo roofing and single ply pvc roofing.

Protector hd allows easy efficient scoring cutting and snapping which permits fast tight fabrication and all in a low dust environment. For example two inches of extruded polystyrene with an r value of 11 has an rsi of 1. Pvc polyvinyl chloride a thermoplastic membrane utilizing a reinforcement scrim between the two plies of equal thickness ib roof only. Most commonly used insulation is iso or eps foam board.

R value is used in the united states. Sarnathin 50 utilizes sika s proven sarnafil roofing membrane along with r 50 systems rich e board a 1 5 inch thick vacuum sealed insulation with a protective covering on both sides and an r value resistance to heat flow of 50. There are many websites on the internet which have imperial building material r value numbers but not so many with metric r value numbers. Rsi r value système international is the metric equivalent.

To convert the r value of a specific thickness of a material to rsi divide the r value by 5 67826. This also means easy hoisting staging and maneuvering around the roof. Easy three step installation to reduce the chance of application errors. Prior to installing the pvc roofing membrane itself typically some type of insulation board is put in.

High r value 2 5 r. Here s a handy r value table that covers most types of roof coverings building insulation and a few other materials. Then you will want a higher r value in your roofing insulation and roofing materials. You should of course see the manufacturer provided technical data sheet for the r value of specific products.

For a very good introductory overview article on r value see r values over at the website of. Modified bitumen are asphalt roofs with a rubber like look and feel. To convert rsi to r value multiply the rsi by 5 67826. Click here to go to our calculator to understand the real r value of a ceiling system or wall system with gaps in the insulation.

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