How To Seam Copper Sheets

This video describes how to make a double lock standing seam with a seaming anvil and a hammer.

How to seam copper sheets.

The weld should be started again and continued until the seam weld is completed. Expansion and contraction are a function of temperature change material properties and the dimensions of the material. This type of seam is used wherever significant movement of the copper sheets is expected. Tin edges and cleats to be soldered form seams and solder.

3 2 mm thick a plain butt joint with squared edges is preferred. View the products. When welding thin sheets the forehand welding method is preferred. For sheets up to 1 8 in.

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. 6 4 mm or more.