Roof Coating Question

[Lin]

My paint job has been dismal for years, so I finally decided to do something about it.  Last week we had a basic job done. This created a problem or rather brought an ongoing problem to light. My Kool Seal roof coating, which is probably around 8 years old is caulking. I did not notice it much on the old, dull paint, but now the shiny paint really shows the streaks after a rain.

My plan would be to clean the roof well and re-coat it.  I have about a gallon of Kool Seal left, but it is at least 12 years old, so I won't use that.  I could buy more of the same but thought to ask if anyone uses another white roof coating that they think is better.

[chessie4905]

Paint it with a good quality exterior latex house paint.

[Dave5Cs]

https://www.homedepot.com/p/Henry-4-75-Gal-887-Tropi-Cool-100-Silicone-White-Roof-Coating-HE887HS018/205049553?mtc=Shopping-B-F_D22-G-D22-22_10_ROOFING-Generic-NA-Feed-LIA-NA-NA-&cm_mmc=Shopping-B-F_D22-G-D22-22_10_ROOFING-Generic-NA-Feed-LIA-NA-NA--71700000044086327-58700004607994977-92700038798651175&gclid=CjwKCAiAhJTyBRAvEiwAln2qB646H814Va4jgbl0sQkLA8pjjwMjLa9BcKtjwwDuvigUAKZc308k7RoCcl0QAvD_BwE&gclsrc=aw.ds
I have used this on two metal roofed homes and a Bus roof. good stuff.

[Lin]

Chessie- I believe that over the years I put two coats of Kool Seal on this roof and would not want to strip it down to repaint.  Are you saying to paint over the Kool Seal?  I guess that could be an option if it will hold since there does not seem to be any leaks.

Dave- That looks like a good product.  I probably could manage with a couple of gallons.

[niles500]

I second the Tropi-cool it will still chalk shortly after original application, but like other 100 % silicone products it stops after that. Follow the prep requirements to the T - FWIW

[chessie4905]

If there is concern whether it will adhere properly, you can pre coat it with Zinzer alcohol based primer first, then apply the latex house paint after 1/2 hour. You can check a Consumers reports for the one that held up the best in their testing.