This document discusses materials used for pole building envelopes. Commonly, 29 gauge colored metal siding is cut to length and attached with screws and washers. Alternative sidings like T1-11, vinyl, cedar, and brick can also be used but may require installing sheeting first. Roof materials are similar and include standing seam metal, asphalt shingles, and wood shingles. Walls can include insulation and the document covers daylighting, ventilation, and other envelope topics.