Pvc Roofing R Value

This also means easy hoisting staging and maneuvering around the roof.

Pvc roofing r value.

Most commonly used insulation is iso or eps foam board. Here s a handy r value table that covers most types of roof coverings building insulation and a few other materials. 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. For example two inches of extruded polystyrene with an r value of 11 has an rsi of 1.

Easy three step installation to reduce the chance of application errors. Heat welded seams for greater reliability. Then you will want a higher r value in your roofing insulation and roofing materials. Built up roof is your standard tar and gravel flat roofing system which is a very low cost and somewhat dated kind of roof.

R value is used in the united states. The following table is in metric form. Rsi r value système international is the metric equivalent. There are many websites on the internet which have imperial building material r value numbers but not so many with metric r value numbers.

You should of course see the manufacturer provided technical data sheet for the r value of specific products. To convert rsi to r value multiply the rsi by 5 67826. Both types have an r value ranging from 4 r to 6 r per 1 inch of insulation thickness. Increased chemical resistance compared to other roofing technologies.

R value of various materials. To convert the r value of a specific thickness of a material to rsi divide the r value by 5 67826. Protector hd allows easy efficient scoring cutting and snapping which permits fast tight fabrication and all in a low dust environment. For a very good introductory overview article on r value see r values over at the website of.

Both of these insulation boards carry an r value that ranges from 4 r to 6 r per 1 inch of insulation thickness. 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. Pvc polyvinyl chloride a thermoplastic membrane utilizing a reinforcement scrim between the two plies of equal thickness ib roof only. High reflectivity for greater energy savings.

Provides significantly more thermal insulation r value than wood fiber or gypsum boards. Guarantees are available up to 20 years when using everguard pvc 60 mil membrane. Tpo roofing and single ply pvc roofing. Modified bitumen are asphalt roofs with a rubber like look and feel.

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.