Tpo Roof D6878

July 2017 would be applied to material warranties and if there is a 5 yr time lag between new standards and manufacturers such as gaf being able to to produce newer tpo materials that meet the newest standard.

Tpo roof d6878.

Overall the aged tpo membrane roofs in this study are performing well and in most instances meeting the current astm d6878 19 requirements for newly manufactured membranes. Closing thoughts although tpo roof membranes have ex perienced significant market growth the concerns raised regarding tpo membrane performance need to be addressed. Astm standard d6878 is the material specifi cation for thermoplastic polyolefi n based sheet roofi ng. Astm d6878 for balloting.

1 1 this specification covers flexible sheet made from thermoplastic polyolefin tpo as the principal polymer intended for use in single ply roofing membranes exposed to the weather. However given the delays experienced i. These types of issues typically are best addressed within astm international by the process established for this purpose. I am considering re roofing a flat roof and i want to know how the newest astm tpo roofing standard d6878 d6878m 17 pub.

In may astm international published a new product standard that applies to tpo roof membrane sheet products astm d6878 standard specification for thermoplastic polyolefin based sheet roofing this provides the first consensus standard defining tpo products available in the united states. Astm standards astm d6878. Astm d6878 d6878m 13 standard specification for thermoplastic polyolefin based sheet roofing. Even after 12 or more years of aging both the 45 and 60 mil membrane samples exceeded current thickness requirements for newly manufactured tpo membranes.