22 CAR § 111-1204. Unconventional roofing systems

(a) Unconventional roofing systems (roof systems other than built-up, modified bitumen, EPDM (ethylene propylene diene monomer) or single-ply) shall be submitted for review to the Design Review Section for approval on a case-by-case basis for use on the roof of a state building under Building Authority Division oversight. (b) Criteria for approval shall be: (1) Acceptable material and method of application; (2) Ability of local installers to apply the proposed roof system; (3) Ability of the state to obtain competitive bids on the proposed roofing system; (4) Proven track record of the system and the manufacturer; and (5) Roof warranty available from the manufacturer for the particular installation.