The Roof Cleaning Institute Of America Training & Certification Forum
"Find A Certified Roof Cleaner Directory"

Paul There is a tom of them out and I personally have not used them, I have heard stories of some of them yellowing and breaking down. Here is one I was looking into-

http://www.enviroseal.com/roofguard.htm

Here is one Brett was looking into and the rep was really good people.

http://www.simixsolutions.com/SELL%20SHEETS/SIMIX_OXI%20SEAL%20AM%20PREVENTER-209a.pdf

Just remember the manufacturer may not warranty the roof after the application, I have never asked the sealcoat company's directly, just from the shingle manufacturer web sites.

2 years ago I was told the Roof Guard 101 was about $600 for the mix and the guys were charging about 2k for the whole process.

that's what I have, hope it helps, I have seen it on a roof and looked pretty cool though kinda like a paver sealer would look with a gloss finish. My concern is not allowing the shingles to breathe which may be the reason why manufacturers cancel the warranty's. (?)

Kim R

PaulS wrote:

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 The competition was offering a 1.5 year warranty on their protective coating and every year thereafter for $200. I got the job!

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 Well done Paul.  The competition is using a marketing ploy.  You can beat them at their own game if you choose.