OAR 411-087-0470. Building Sprinkler Systems

(1) Applicable Codes. Facilities with sprinkler systems for fire suppression shall be installed to comply with the Oregon Structural and Life Safety Code as adopted by the Oregon Building Codes Division or local jurisdictions having authority. (2) Unheated Areas. Sprinkler systems located in unheated areas or above the insulated ceiling system shall be of a dry type, have automatic heaters that maintain a minimum temperature of 40 degrees Fahrenheit, or have an antifreeze system. [Publications: Publications referenced are available from the agency.]