Dutch
May 11, 2002, 3:27 PM
Post #7 of 9
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Paint/sealer for concrete roofs
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: I'd appreciate any input about good quality roof paints for concrete roofs.
: Roof has slight pitch, around 40 years old, obviously painted many times before, a few hairline cracks (lots of earthquakes here in Acapulco, sometimes a couple of rumbles a night). There are a few patches where the thick last coating is peeling. I want to do it white as before, and walk on it/ sit up there on chairs, so I don't want to use an elastomeric, as my experience
: with them in the States is that in hot weather they are just too soft to take deck furniture or walking. Should I try to finger/brush caulk over the hairline cracks first (too small to caulk with a gun), or should a good quality paint pretty much seal the cracks?
==================================================<p>Just as you would use a fibreglass tape to seal between joints of sheetrock in the USA, there is a product for bridging small cracks in the concrete roofs prevailant in Mexico. It's made by Fester, and is called "Imperflex". Comes in rolls in the Guadalajara area; most hardware stores will sell you smaller pieces off a big roll if you only need small quantities. I've used it to re-seal an entire roof, as well as join an existing roof with new construction. First, the roof is "painted" with a conventional roof coating, the fabric (looks like thin fibreglass sheeting) is laid on, and then another coat of the roof coating is applied. Two if you want additional protection. The coatings typically come with 1, 3 or 5 years "warranties". Buena Suerte!...Dutch
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