The Berridge Model TZ-21 Portable Roll Former forms Tapered Zee-Lock Panels in a two-stage process at the jobsite. There are two roll formers mounted on a common table for producing tapered panels. One roll former forms the female leg on the coil strip (stage 1); the other rollformer forms the male leg on the coil strip (stage 2). First roll the female leg side of the panel. Then shear your template, flip, and roll the male leg of the tapered panel. The TZ-21 roll former can form Tapered Zee-Lock panels in lengths ranging from 4′ up to 200′. The panel width at the eave can be a maximum of 16″, while the panel width at the ridge can be a minimum of 4″. This unique machine enables the roofing contractor to form long-length Berridge Tapered Zee-Lock Panels at the job site to fit conical roofs. Consult BMC Sales for more info or training on TZ-21 operation. Limited availability. Consult BMC Leasing for availability. FOR LEASE ONLY.

  • Available in 24 & 22 gauge steel
  • Extruded patented* vinyl weatherseal for single-lock applications
  • Mechanically seamed sidelap
  • 2” high standing seam sidelap
  • UL 90 wind uplift & UL fire resistance listed
  • ASTM air & water resistance tested
  • ASTM E-1592 & UL 580/UL 1897 tested
  • ASTM E-2140 tested
  • Corps of Engineers CEGS 07416 approved
  • Miami-Dade Approved
  • Florida Product Approval
  • ICC-ES Report ESR-3486


  • Standard material is 24-Gauge, Galvalume®
  • Optional material is 22-Gauge, Galvalume®
  • Unfinished material is Acrylic Coated Galvalume®

Tapered Panels



Continuous Zee-Rib with vinyl is required for curved Zee-Lock applications.
Die-stamped to match the panel profile. Use as a mechanical weather closure at ridges, headwalls, and slope transitions. Use Zee-Flashing for hips.
Panel support clips are required for expansion joints. Use at purlin and other framing locations to provide support for the ends Zee-Ribs.