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PDFWAC 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. WSR 99-03-065, ยง 246-359-320, filed 1/18/99, effective 2/18/99.]
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