Seam integrity of stainless steel

Guest User
10/26/2013
I have invested in a stainless steel standing seam roof for my cape cod style house, and the installation is nearly finished. I am concerned about the seams, which appear loose to me; I'm attaching a picture. Is it normal for the seams to flay out at the bottom like that? I've not seen this on any other standing seam roof, but none of those are stainless steel; in fact I have never seen another stainless steel roof. I'm told that a stainless steel installation is different because it is by nature less ductile than the others. Can you either assure me that the installation looks normal, or advise me that corrections should be made?
Todd Miller
Isaiah Industries, Inc.
10/26/2013
Do you know that the roof has been fastener properly, as far as the clip that was used and the spacing of them? Right off hand, I suspect that all is well. The extra metal from the "flay" has resulted in the arch of the panel flats.
Guest User
10/27/2013
It looks like there's usually 2-ft between the clips (although a few are up to 3-ft apart), and I'm sure they are also stainless steel (but don't know what kind). The roof will need to support photovoltaic solar panels. Thank you very much for responding so quickly.
Todd Miller
Isaiah Industries, Inc.
10/27/2013
I feel like things will be okay but, honestly, I am outside my expertise. I have not worked much with stainless. Perhaps someone else will have some better input.
David Stermer
9/5/2017
Hi Mary, Thanks for your interest in metal roofing. It appears to me that the underlap rib is located farther downward relative to the overlap rib. While this could be as intended - a natural end flare, it could also indicate an improperly formed mechanical seam. It is hard to tell from just a picture. I recommend communicating with the panel manufacturer to confirm the panel seam is properly formed. Regards, David
Eric Novotny
An informed customer is the Best Customer!
9/6/2017
No hem at the eave?

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