WAC 296-150V-1110
Combustible limitations. (1) The exposed
wall adjacent to the cooking range must be 50 flame-spread or less,
such as 5/16 inch gypsum board or material having equivalent fire
protective properties.
(2) All openings for pipes and vents in furnace and water
heater spaces shall be tight-fitted or fire-stopped.
[Statutory Authority: Chapter 43.22 RCW. 99-18-069, §
296-150V-1110, filed 8/31/99, effective 10/1/99.]