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How to hem a metal roof panel using seaming pliers?

How to hem a metal roof panel using seaming pliers?

Shop for Seaming Pliers

Hemming is forming an edge or border on or around an object. The overhanging edge of a metal roof panel is bent back against the underside of the panel and hemmed to seal it.
Hemming sheet metal with seaming pliers

Step 1 – Grasp edge of metal roof panel

Grasp a small section of the newly bent part of the roof panel between the jaws of the seaming pliers and hold it firmly.

Continuing to hem sheet metal with seaming pliers

Step 2 – Hem a smooth seam

Open and close the seaming pliers whilst moving them along the edge of the roof panel to exert the pressure needed to form a smooth seam.

Seaming pliers in use to hem a metal sheet roof

Step 3 – Finish hemming a smooth seam

When you have finished hemming a smooth seam on the edge of the metal roof panel, it should be sealed and watertight.

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