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Fibered silver coat for metal roof?





During my recent home purchase my inspector recommended fibered silver coat for a weathered section of metal roof on an addition to the house. I am curious if this is preferred over paint and do I need to prep in the same manner as painting (power wash, prime, paint)? There is some surface rust and possibly some old paint.

57688

Todd Hogeman
home owner - Watkins Glen, NY USA
September 10, 2011



Roof Patch - Silver
on
Amazon

(affil links)

September 14, 2011

Hi, Todd.

You can use canned tar-like materials around flashing and joints, or as a roof topping. Often the tar has glass fibers in it so that it bridges gaps better. Although I've only used black, I think your home inspector was speaking of the same thing in a silver tone. I think this is something you can do before repainting, or after repainting, if the roof is sound, but you can use it rather than a paint if you think the roof may have pinholes or a lot of joints. Considering the mixed construction of this roof, the inspector may be dead on.

I think you should power wash, then prime, and you'll be in a much better position to determine whether it will be easier to seal joints with the fibered tar, and paint the rest, or just seal the whole thing with the fibered tar. Good luck.

Regards,

Ted Mooney, finishing.com
Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey



The silver stuff has been used on trailer houses for over 50 years. The silver reflects a lot more of the sun than the plain black stuff.
It is available at most home repair shops. It takes a bit more than the can says to cover the roof because of the curves in the roof and another bit more because it is not easy to lay down in a proper thickness coat.

James Watts
- Navarre, Florida
September 14, 2011


Thanks for your input. I am hoping to get this done in early/mid October, as soon as we move in. Hoping the weather is warm enough to treat the roof before winter.

Todd Hogeman
- Watkins Glen, New York, USA
September 17, 2011




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