Sheet Metal Roof Expansion Joints

Flat seam roofs used in low no slope areas or areas subject to flooding or standing water typically made from 20 x 28 sheets relative geometry is important fro expansion and contraction sheet use efficiency and wind load.

Sheet metal roof expansion joints.

Uniquely addresses wall joint to roof joint interface uv stable tpv or pvc for broadest liquid and sheet membrane compatibility what s different. 4 apply a generous bead of waterproof roof caulk to both edges of every 6 inch wide. Get moisture protection from the top down with roof covers from construction specialties. The waterproofing elements of roof expansion joints currently are looped membranes.

We do a lot of long length roofing and while fixing the sheets is a pretty quick process expansion joints can take time especially if you haven t got a good system to use. We were working with sheet lengths up to 29 3 metres so thermal expansion was an issue. Our roof covers have extensive model options for flat and built up roofs. Presents practical troubleshooting and corrective tips for typical problems of roof panels gutters downspouts fascia copings flashing ridges and hips valleys expansion joints penetrations fasteners and soldering.

Technical paper architectural sheet metal manual. The loops either hang down into the joint in the case of metal cover systems or are humped up by means of. Copper or stainless steel is recommended lock and seal all joints solder joints on slopes less than 3 12.