(1) Wall and ceiling covering materials must be attached so that they are easily cleanable.
(2) Except in areas used only for dry storage, concrete, porous blocks, or bricks used for indoor wall construction must be finished and sealed to provide a smooth, nonabsorbent, easily cleanable surface.
[Statutory Authority: RCW
43.20.050 and
43.20.145. WSR 21-01-122, § 246-215-06225, filed 12/15/20, effective 3/1/22; WSR 13-03-109, § 246-215-06225, filed 1/17/13, effective 5/1/13.]