I'm looking for some suggestions to help fix my problem.
I have an enclosed patio on concrete slab about 3-4" lower than house slab. Water seeps into patio when it rains. Appears to start at the corner and moves along the wall to the sliding door. The walls look like they were set on top of a 1/2" to 1" slap of concrete someone added (not sure if it goes completely under the walls). The sliding doors are on the original slab, but have some kind of acrylic? caulking under it and around it. There is about 1-2' of concrete beyond the exterior walls to the back yard which slopes to the exterior 1/2" add on and exterior wall.
I've cleaned the concrete corners out and applied silicone thinking there were cracks between the two layers. Water sitting on this area is fine. It's when water rises above the 1/2" add on that creates the flooding (wood siding)
What are ways i can stop water from entering the patio?
I was thinking of taking out the wood siding and adding more concrete to make it higher so water won't touch the wood siding. Or perhaps add mortar and bricks about 1 or 2 layers. Would this create a seal between the two layers?
Or was thinking of skim coating the exterior of the slab and grading it away so that water won't flow to the walls. This might look very funny cuz the sliding doors are lower and water might start traveling that way.
The 2 walls have the same condition. both 20 ft long. Doors are about 6ft.