Sealing box gutters

Zelie4111September 13, 2013

My box gutters gave been tarred several times over the years which tells me it is probably not a great idea to use rust oleum paint as should have been done in the first place. I am looking into roof sealers instead of tar this time because the tar never seems to work. Any ideas?

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renovator8

First determine if the previous coating was coal tar or modified asphalt because they are not compatible with each other and with many other waterproofing coatings. This may not be a good DIY project.

    Bookmark   September 14, 2013 at 4:27PM
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columbusguy1

My box gutters were leaking at a couple corners when I bought the house in '87, so a few years later when the roof was redone, the roofer used a rubber membrane to line them. I haven't had leaks from them since then. It is a black rubber, which is all I can say about it--I don't think there was ice dam material back in '92, so I'm pretty sure it's nothing exotic--just make sure its well adhered.

    Bookmark   September 14, 2013 at 7:53PM
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