How To Seam Copper Sheets

Tin edges and cleats to be soldered form seams and solder.

How to seam copper sheets.

This type of seam is used wherever significant movement of the copper sheets is expected. It is arguably the most time proven type of roof panel seam. Expansion and contraction are a function of temperature change material properties and the dimensions of the material. The backhand method is preferred for thicknesses of 1 4 in.

3 2 mm thick a plain butt joint with squared edges is preferred. View the products. Fabricate nonmoving seams in copper sheet with flat lock seams. Where lapped or bayonet type expansion provisions in work cannot be used or would not be sufficiently water weatherproof form expansion joints of intermeshing hooked flanges not less than 1.

The weld should be started again and continued until the seam weld is completed. This video describes how to make a double lock standing seam with a seaming anvil and a hammer.