Often, the roof curb framing is made of sections of cold-formed steel ... Roof curbs include pipe curbs, pitched curbs, and skylight curbs. Pipe curbs are designed to match the profile of a metal roof ...

Roof trusses are used for roof framing and roof support ... Roof trusses may use designs that are categorized as attic, bowstring, double fink, double howe, dual pitch, fan, fink, flat, hip, howe, ...