(1)
Polypropylene siding shall conform to ASTM D7254, “Standard Specification for Polypropylene (PP) Siding.”
(2)
Where polypropylene siding is required to have a flame-spread rating, the rating shall be determined in accordance with CAN/ULC-S102.2, “Standard Method of Test for Surface Burning Characteristics of Flooring, Floor Coverings, and Miscellaneous Materials and Assemblies.”