Steel Curved Roof Construction Details

When installing the metal panels shown in this booklet over a curved arch the minimum.

Steel curved roof construction details. The standard fastening pattern is permitted over the rest of the sheet. When curving the beams the curvature had to make a complete 180 degree rotation. Vertical seam panels unless hand formed or customer curved do not work real well on concave or convex surfaces. The majority of curved steel for use in construction is curved by roller bending which is a cold process.

The curved roof construction details for this massive barrel roof included thirty seven wide flange 16 x 57 l beams that were curved in the strong axis or the hardway to create a 14 10 radius semicircle. If a sheet must be bent a gentle 90 degree bend is the maximum recom mended. Bending and bowing aluminum and steel roofing and siding sheets are rollformed from hardened tempered metal for maximum strength. Curved roof fascia systems when you want to add a metal curved roof or fascia to your design mbci offers the choice in three distinctive and complete panel systems for your use.

The rolls are shaped to the cross section of the steel member being curved see figure 3 1. Metal should not be re bent once it has been formed nor should it be folded back on itself. Roller bending involves progressive bending of a section by passing the member through a set of bending rolls. When a metal roofing sheet must be installed on a curved roof screws should be installed at every overlapping rib at the sheet ends to resist the natural tendency of the metal to spring back.