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Hi, we are having a new standing seam metal roof installed on our home. The roof is approximately 4,100 square feet. The well-respected contractor is using Firestone Unaclad 24-gauge steel coated with a KYNAR finish. I took a close look at some pans that have been installed and noticed hairline scratches running length-wise up the pans right in the crease where the pan edge was formed. It is not visible from a distance, so I am not overly concerned about cosmetics. I am very worried about rust, however. Interestingly, it looked like the scratch was on one side of the pans I inspected but not on the other side. My UN-educated guess is that the contractor's field pan former is scratching the pans as they are being made. More than half of the roof is now installed and I would estimate that most if not all of the pans have this "issue." Any ideas on what I should do? Thanks in advance!
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One thing to realize is that underneath the paint there are layers of primers, and under the primers there is a protective zinc-aluminum (Galvalume) layer.
I called Firestone Unaclad and they reccomended that the areas be coated with touch up paint. You can call them at 800-426-7737 to find out where to get it. I would reccomend you talk to your roofer about this.
Again a lot of this has depends on the severity of the scratches.
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Hi and thanks for the quick reply. We are talking about hundreds of feet or more of hairline scratches up and down the pan seam creases. I would be concerned that adding that amount of touch-up paint could create cosmetic issues (i.e., mismatched colors, uneven surfaces, bubbled areas, etc.) that do not currently exist. Also, I am concerned that the roofer might balk at a request to apply such a large amount of touch-up paint because of the time and expense involved. I will try to take a picture of what I am talking about this evening and post it here. Thanks again.
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Attached is a picture I just took of an installed pan. The thin white line running horizontally across the center of the picture is what I have been describing as a "hairline scratch." Comparable markings exist on at least one side of just about every installed pan I have examined. My main concern is the potential for rust down the road. Any comments would be greatly appreciated. Thanks!
6/24/2008
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Or copy this URL: https://www.metalroofing.com/spirit/comment/11633/find/Isaiah Industries, Inc.
6/24/2008
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Or copy this URL: https://www.metalroofing.com/spirit/comment/11637/find/Isaiah Industries, Inc.
7/13/2008
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