(A) The post used for framing a post-frame building shall be of SYP; shall be treated with CCA or some equivalent or better treatment; shall be at least six inches by six inches in dimension; shall be spaced at seven feet six inches on center at sidewalls (those walls supporting roof system) and shall be spaced at no more than ten feet zero inches on center on end walls.
(B) One row of two-inch by eight-inch center match SYP splash boards, which have been treated with CCA or some equivalent or better treatment, shall be fastened around the entire base of the building with 16d galvanized ring-shank nails.
(C) Construction-grade girt boards made of two-inch by six-inch SPF No. 2, or of lumber having equivalent or greater strength, shall be spaced to obtain a 20 pound per square foot wind load in conjunction with other bracing and siding.
(D) Continuous two-inch by six-inch SPF No. 2 construction-grade lumber, or lumber having equivalent or greater strength, shall serve as truss-support boards in conjunction with two-inch by six-inch SPF truss-block system. Truss-support boards shall be fastened to columns with 60d oil-quenched, hardened steel, ring-shank nails.
(E) Preengineered trusses shall be spaced seven feet, six inches on center. The minimum load-bearing capacity for preengineered trusses shall be 30 pounds per square foot live load on the top chord, five pounds per square foot dead load on the top chord, and six pounds per square foot dead load on the bottom chord. All building permit applications must be accompanied by drawings sealed by an architect registered in the state and must show no less than these loads and spacings. Trusses shall be fastened at each column with 60d ring-shank nails and with a minimum of one-half-inch diameter bolt at each end.
(F) Load-bearing capacity.
(1) Post-frame buildings for use for human occupancy. All trusses at the ends of post-frame buildings shall be braced with two-inch by six-inch SPF corner bracing diagonally. At other than the ends of post-frame buildings, all trusses shall be braced with two-inch by four-inch SPF per truss engineer’s specifications. Additional bracing must be used where necessary to maintain a load-bearing capacity of 40 pounds per square foot live load and 30 pounds per square foot dead load on the roof and sides of a post-frame building.
(2) Post-frame buildings for storage only. All trusses at the ends of post-frame buildings shall be braced with two-inch by six-inch SPF corner bracing diagonally. At other than the ends of post-frame buildings, all trusses shall be braced with two-inch by four-inch SPF per truss engineer’s specifications. Additional bracing must be used where necessary to maintain a load-bearing capacity of 30 pounds per square foot live load and 20 pounds per square foot dead load on the roof and sides of a post-frame building.
(G) Purlins shall consist of-two inch by four-inch SPF No. 2 construction-grade lumber, or lumber of equivalent or greater strength, and shall be spaced on center two feet, zero inches. Each purlin shall be fastened to the trusses with 60d oil-quenched, hardened ring-shank nails. The end of each purlin shall lap the end of the next purlin, and the ends of those overlapping purlins shall be tied together with two 16d galvanized ring-shank nails.
(H) All interior walls and the ceilings shall be striped with two-inch by four-inch SPF No. 2 construction-grade lumber, or lumber of equivalent or greater strength, and shall be spaced two feet zero inches on center for application of the interior finish. The two-inch by four-inch timbers used in the ceiling must be set in approved metal joist hangers.
(1986 Code, § 7-104) (Ord. 1990-08A, passed 4-2-1990)