WAC 246-359-320   Roof covering materials for wood framed construction and concrete masonry units (CMU).  Roof sheathing must be protected by installing a material that has been designed as a roofing covering product. Installation of the selected roof covering material must be according to manufacturer's instructions and industry standards.



[Statutory Authority: RCW 70.114A.081. 99-03-065, § 246-359-320, filed 1/18/99, effective 2/18/99.]