Seaming Techniques and Details on 26 Gauge Steel

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The type of metal you are working on has a lot to do with what finishing details you are able to perform. Copper and zinc, being softer materials, are able to form and maneuver easily. When working with 24 gauge painted steel, you are more limited. This series of videos shows the mechanical seaming and finishing details of 26 gauge, painted steel. 

The work is being performed by Hardin Construction of Frederick, MD. 

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Mechanically Locking Panels

This video shows the installation of a metal roof panel starting with the fastening of the clips and then the hand locking technique of a mechanical locked panel. In this video, the AccuSeamer is used to close the 2nd stage (180°) of the panel. This portable drill seamer is faster than hand closing and is a lightweight alternative to a power seamer. Notice that there are no transition marks on the seam that would be left from hand closing.

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Crescent Eaves Details

This video shows the crescent eaves detail to finish the panels along the eaves edge. Why do a crescent eaves? 

“It’s a designer detail. Most guys will do a straight up and down 90 degree edge. But we like to spend a little extra time on the detailing and seaming. It’s important to make the appearance as classic and timeless as possible. I really like working with the qualities and craftsmanship associated with it.”

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For a more detailed look at the crescent eaves technique, see THIS POST

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Eaves Seamer & Locker

The RAU105 & RAU106 combination are used for making a hem along the eaves edge and crimping it for a nice uniform lock. Having a tool (RAU106) specifically used to “crimp” the panel around the drip edge is a major time saver and produces a much cleaner look from the ground than crimping with hand seamers would leave.

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Why Mechanical Seaming?

Traditional double lock standing seam has been around for centuries. Some of it’s advantages are:

• Lower maintenance and longer lasting
• Not anchored to roof to allow for expansion and contraction
• Can be installed on lower slope roofs than snap lock (2:12 minimum)
• Lower profile seam look (less bulky) is preferred for residential 

Amazingly, Stortz Tools is located a few blocks from the first significant standing seam copper roof in America. Christ church was built in 1744 and the copper mechanical lock panels still protect the building to this day.

All products shown are available at our online store. Call 215-627-3855 if you have any questions or need help.

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