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Originally Posted by HarryD
Late to this thread.
How is the contractor closing the seams? Hopefully not by hand.
This is the most critical aspect of a Standing Seam Metal roof. Of the seams are not tight, you will have leaks.
DoD does a ton of these. This is their requirement:
3.3.1 Roof Panels
Apply roofing panels with the standing seams parallel to the slope of the roof. Provide roofing panels in longest practical lengths from ridge to eaves (top to eaves on shed roofs), with no transverse joints except at the junction of ventilators, curbs, skylights, chimneys, and similar openings. Install flashing to assure positive water drainage away from roof penetrations. Locate panel end laps such that fasteners do not engage supports or otherwise restrain the longitudinal thermal movement of panels. Form field-formed seam type system seams in the field with an automatic mechanical seamer approved by the manufacturer. Attach panels to the structure with concealed clips incorporated into panel seams. Clip attachment must allow roof to move independently of the structure, except at fixed points as indicated.
Full specification (27 pages) is here: https://www.wbdg.org/FFC/DOD/UFGS/UFGS%2007%2061%2014.00%2020.pdf |
Hello Harry.....
Thanks for dropping by - and especially for your valuable input!
My panels are a snap in style.....
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GulfLok™ is a nailstrip panel, which is a snap-lock, clip-less system. GulfLok™ is our entry level standing seam panel; the nailstrip design provides slots for fasteners, eliminating the need for clips (and reducing the labor and complexity associated with installation). As a snap-lock panel, the system does not require any special seaming tools, making GulfLok™ a popular choice for residential markets and light commercial projects.
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https://www.gulfcoastsupply.com/metal-roofing/metal-roof-types/gulflok/
The installer used a rubber mallet to push the female edges onto the males ridges. They snap into place. No sealant required.
See next post for pics....