The provisions of the Specialty Codes are not intended to prevent the use of any material, method of design or method of construction not specifically prescribed by the Specialty Codes, provided an alternate has been approved and its use authorized by the building official.

The building official may approve an alternate, provided the building official finds that the proposed design is satisfactory and complies with the provisions of the Specialty Codes and that the material, method or work offered is, for the purpose intended, at least the equivalent of that prescribed in the Specialty Codes in suitability, strength, effectiveness, fire resistance, durability, safety and sanitation.

The building official shall require that sufficient evidence or proof be submitted to substantiate claims that may be made regarding its use. The details of an action granting approval of an alternate shall be recorded and entered in the files of the code enforcement agency. (Prior code § 9.105)