Pvc Roof Membrane R Value

Thermoplastic membrane pvc roofing added 11 2012 07 54 19 1 thermal and moisture protection guide specification section 07 54 19 single ply pvc reroofing.

Pvc roof membrane r value.

Easy three step installation to reduce the chance of application errors. R value is used in the united states. Part 1 general. Rsi r value système international is the metric equivalent.

Sika sarnafil is a leading manufacturer of pvc roofing and waterproofing systems in the usa. Mechanically attached installation uses heavy duty screws and barbed plates to hold the membrane down tightly and is not affected by possible iso de lamination. Thinner is definitely an advantage. Heat welded seams for greater reliability.

The american society of testing and materials astm requires a roofing membrane to have a minimum breaking strength of 200 pounds per inch. Learn more about our 55 years of experience in the roofing industry. Single ply roofing information. Pvc roofs are specifically engineered for strength ensuring the membrane s long service life.

All roofing areas flashings penetrations and equipment shall be included in the work under this section. High reflectivity for greater energy savings. Both types have an r value ranging from 4 r to 6 r per 1 inch of insulation thickness. Our high performing single ply roofing solutions offer unrivaled reliability and longevity.

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. Duro last 50 mil membrane is manufactured with 28 mil of thickness on the top performance layer far exceeding industry standards as well as competitor systems with equal and even greater mil values. The membrane is attached using 12 o c. Roof membrane available in 40 50 and 60 mil thickness.

For example two inches of extruded polystyrene with an r value of 11 has an rsi of 1. Pvc roofing membranes far surpass this standard all having a minimum breaking strength of 350 pounds per inch. Increased chemical resistance compared to other roofing technologies. Currently cellular foams with r values of 5 to 6 per inch are used whereas the earlier non cellular wood fiber perlite and glass fiber insulations were closer to 3.

Pattern with perimeter sheets attached 6 o c.