Our Liner Panels-PBU are exposed fastening systems for roof and wall applications using vertical or horizontal lines

PBU - Exposed Fastening Systems

The PBU panel is an exposed fastener system that can be used for both roof and wall applications. PBU can be installed directly over purlins or joists. PBU offers the versatility of being used in both vertical and horizontal applications to give designers a contemporary appearance for their building project. PBU is recommended for 1:12 or greater roof slopes.


  • Numerous UL 580 ratings are available, as well as UL 790, Class A for external fire, roof assembly for UL 263 for internal fire and the UL 2218 Class 4 impact rating.
  • PBU carries Florida approval.


Applications: Roof and Wall
Coverage Widths: 32″ wall, 29.33″ roof
Rib Spacing: 6″ on center
Rib Height: 3 ⁄4″
Slope: Minumum 1:12
Panel Attachment: Exposed Fastening System
Gauges: 26 (Standard); 29, 24, 22 (Optional)
Finishes: Smooth (standard); Embossed (optional) Coatings: Galvalume Plus®, Signature® 200, Signature® 300