To print a page in the WAC, use your browser’s normal print functions (Ctrl-P on a PC, Command-P on a Mac, or File > Print on either). The resulting printed page will show just the content and not the banner at the top, the left-side navigation, or the footer links. To see how the page will look before you print it, use your browser’s Print Preview.

246-359-320  <<  246-359-330 >>   246-359-340

Roof framing ventilation for wood framed construction and concrete masonry units (CMU).

(1) Ventilation must be provided for enclosed roof framing spaces by providing sixteen-mesh screened openings at:
(a) The eaves;
(b) The gable ends;
(c) The ridge; or
(d) Any combination of (a) through (c) of this subsection.
(2) The minimum amount of ventilation openings must be at the rate of one square foot of net free opening for every three-hundred square feet of attic area.
[Statutory Authority: RCW 70.114A.081. WSR 99-03-065, § 246-359-330, filed 1/18/99, effective 2/18/99.]