Steel Curved Roof Construction Details

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.

Steel curved roof construction details.

The majority of curved steel for use in construction is curved by roller bending which is a cold process. Bending and bowing aluminum and steel roofing and siding sheets are rollformed from hardened tempered metal for maximum strength. 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. When curving the beams the curvature had to make a complete 180 degree rotation.

Metal should not be re bent once it has been formed nor should it be folded back on itself. The rolls are shaped to the cross section of the steel member being curved see figure 3 1. When installing the metal panels shown in this booklet over a curved arch the minimum. This facility opted for a half circle roof.

If a sheet must be bent a gentle 90 degree bend is the maximum recom mended. Every once in awhile someone asks me about putting metal on a roof that is either round or else has a concave or convex curved roof up the rafter like a bell shape. Whether the arched roof will be installed over a solid deck or open framing mbci has a panel that fits the application. 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.