Our building has decided to paint a 13-ft x 13-ft section of the roof that's leaking (just a few drops with lots of rain). This roof has a fence since it's an "outdoor" area that we all share, so it's secure to work there. We live in the Caribbean, so this roof receives lots of sun. The roof is not covered.
Someone went over there to quote the job, and he said that he would apply a primer and then an "ultra-white" roof coating. I was checking in home depot, and most (if not all) roof coatings are very white.
So my questions:
Since we don't need the roof coating to reflect the sun or UV rays, is it possible to just apply a very good/thick primer and that's it? Many years ago they applied a white roof coating, and it was so bright that we couldn't sit up there.
We only need a product that will seal the concrete and stop leaks. I don't know much about this, but I was thinking of something like a Satin Clear Seal Concrete Protective Sealer or a Water-Proofing Membrane. Whatever we apply, it can't be a bright white.
The ideal product would have the following characteristics:
- Seals the concrete and stops the leaking
- Since the concrete is very rough, it'd be great if the coating's thick enough so that the concrete doesn't fill so rough if someone falls.
- If the product has some color, that'd also be great. But it's OK if it's clear. It cannot be ultra-bright white.