Structural Mechanical Lock Standing Seam
The 3" Trapezoidal panel is a mechanically seamed roofing panel designed for industrial, commercial and large-scale applications over steel purlins. Available in a 18" or 24" width, this panel works well for long spans, and very low sloped roofs.
Steel Purlin: Panel can be installed over open framing, with/without insulation (blanket or rigid).
Download 3" Trapezoidal Documents here