Leaking roof deck over sunroom
(Lake Ozark, Missouri)
We have a deck which is the roof or our sun room. The pitch is wrong and water stands on the deck in various places. We have leaks in the sunroom.
The deck is covered with unglazed ceramic tile. We put at least two coats, maybe more of a waterproof coating called Red Top, I think, over the cement board. The floor joists are 12 inches apart.
I have been researching on the internet for a solution to the leaks. I am wondering about covering the ceramic tile with a type of poured floor, or is it possible to somehow waterproof the top of the tile and install new tile or other product over it?
As far as I can tell, the tile is very secure and there are no cracks. A professional opinion would be greatly appreciated. ...And yes, cost is a concern and other solutions are welcomed.