22 CAR § 111-1202. Determination of the proper roof system

(a) In designing and specifying the proper roof system for a new building, the following should be considered: (1) Type of building refers to a state-owned or leased property (library, office buildings, campus buildings, the like) under Building Authority Division oversight; (2)(A) Special considerations refer to what goes on in the building. (B) For example, will there be a pool or a unique use inside the structure? (C) The uses of the building will determine roof traffic, surfacing, need for a vapor retarder sheet, and insulation ("R" value) requirements; (3) External considerations include: (A) High winds; (B) Snowfall; (C) Rains and their concentrations; and (D) Outside contaminating processes; (4) Life of the building determines how long it will be expected to last; (5) Building and regulatory codes refer to UL Solutions, FM Global, and the various applicable local, state, and national codes; and (6)(A) Structural considerations mean that the roofing system must work with the other building components. (B) For example, are the edges of the roof deck flush or are there parapets? (C) Dimensions of the building and shape of the roof deck will determine the need for expansion joints. (D) Any protrusion through the roof will require flashing materials. (b)(1) The roofing system as specified should be a complete and compatible system. (2) The system should be manufactured by a manufacturer doing business in this region of the United States. (3) The design professional shall investigate the need for and specify all roofing components needed for a complete roof assembly.