Astm standard d6878 is the material specifi cation for thermoplastic polyolefi n based sheet roofi ng.
Tpo roof d6878.
It covers material property requirements for tpo roof sheeting and includes initial and aged properties after heat and xenon arc exposure.
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.
Closing thoughts although tpo roof membranes have ex perienced significant market growth the concerns raised regarding tpo membrane performance need to be addressed.
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.
However given the delays experienced i.
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.
I am considering re roofing a flat roof and i want to know how the newest astm tpo roofing standard d6878 d6878m 17 pub.
Astm standards astm d6878.
As stated in the scope of the standard the tests and property limits.
These types of issues typically are best addressed within astm international by the process established for this purpose.
Astm d6878 for balloting.
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.