ASTM D5019-07a PDF Download

The ASTM D5019-07a standard is a specification for reinforced non-vulcanized polymeric sheet made from chlorosulfonated polyethylene (CSM) that is used as a single-ply roof membrane and is exposed to the weather. This specification requires that the sheet be reinforced with fiber or fabric to provide additional strength.

The standard emphasizes that the polymers used in these sheets have thermoplastic characteristics at the time of installation, but will vulcanize in place under ambient conditions. The tests and property limits used to characterize these sheets are minimum values.

It is important to note that this specification does not cover in-place roof system design criteria such as fire resistance, field seaming strength, impact/puncture resistance, material compatibility, and uplift resistance. These factors should be considered separately and are beyond the scope of this standard.