STANDING SEAM METAL - GN Roofing, installing all kind of BERRIDGE STYLE. Cee-Lock standing seam metal roofing system is an architectural and structural panel that provides an 11-1/2″ or 16-1/2″ coverage and a 1-1/2″ seam height. It is a Snap-Lock panel that incorporates Berridge’s Vinyl Weatherseal into the seam. For residential and commercial construction with solid sheathing applications. Cee-Lock may be roll formed on-site with Berridge’s CL-21 portable roll former (16-1/2″ panel only).