How To Seam Copper Sheets

Fabricate nonmoving seams in copper sheet with flat lock seams.

How to seam copper sheets.

For sheets up to 1 8 in. When welding thin sheets the forehand welding method is preferred. This type of seam is used wherever significant movement of the copper sheets is expected. The weld should be started again and continued until the seam weld is completed.

It is arguably the most time proven type of roof panel seam. 6 4 mm or more. This video describes how to make a double lock standing seam with a seaming anvil and a hammer. The backhand method is preferred for thicknesses of 1 4 in.

3 2 mm thick a plain butt joint with squared edges is preferred. 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.