TOPIC: I Have An Existing Metal Roof and Have A Question
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I have a douple rolled zinc roof and may need to replace some damadged panels. What is the best proccedure for this?
Post up a picture to start with.
Do you know who the panel manufacturer was?
Elzinc is the manufacturer
I think these panels will have to be removed from the last one installed on back to the damaged areas ... and will likely be destroyed in the process and have to be replaced with new panels.
Do you believe all the panels that are removed will have to be replaced, or just the ones in the picture that are currently damadged?
These are mechanically seamed double lock panels. There are others out there far more familiar with these panels than I am. However, I believe that there will not be a way to unlock / unfold the seams and then be able to re-seam them. Again, there are others who know more than I do in this area. You may want to contact the manufacturer and see what they say.
Thank you gentlemen for your adivise
can panels be overlayed on top of the damadge panels? what if any negetive affects could this have? And if possible from pictures what do you think the cause of these ripples might be?
Unfortunately, there really would not be a way to overlay these with new panels, because of the mechanical seam. Additionally, double layering zinc tightly like that would be an invitation to corrosion I am afraid. When you said the panels were damaged, I assumed something had happened to them. If they have been that way since they were installed, someone really messed up during installation.
I have come to understand that this is called oil canning. it comes and goes, sometimes it looks better but never worse that the pictures
Oil canning can be due to several things:
1) Inherent unavoidable stresses caused by the shape of the metal.
2) Installing over an uneven surface.
3) Improper fabrication of the panels.
4) Physical damage to the panels.
5) System design does not properly allow for thermal expansion and contraction of the product.
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