This weekend, water was observed flowing up, through the floor and through other joints, into the building - making a swimming pool we didn't ask for!
We currently have a project constructing a shop/garage in the Texas hill country. The site is above the flood plane and water table. The site is on the side of a hill; the ground is overwhelmingly limestone.
Construction has halted due to unusual and extensive rainfall in the area for the last several weeks.
Please see photos below for details of the water penetration problems.
What is the appropriate course of action considering:
- the building has a poured concrete foundation with monolithic curb 12 inches tall
- the below grade walls are 12 inch CMU and filled with concrete
- we are in Texas, most people don't have a basement
- most local contractors don't have experience working on below grade projects like this one (see above)
- we followed the engineers instructions as closely as possible
- we would prefer not to remove the back fill and start over
Is it possible to completely seal this building from the inside? If so, what products are most appropriate?
As an aside: There are several problems with this project including the floor (the top of the foundation) being out of level by several inches. During previous rain activity, prior to the roof installation, water was observed pooling in the north west corner. It was believed that this would not be a problem after the building was finished and watertight.
This is the topography of the area with the site in red.
This is the site plan with the building in red.
This is the longitudinal section with the below grade portion in red.
This is the engineering for the walls, including the french drain and waterproofing.
This is the floor plan with known water penetration areas in red.
Inside: Over view with known water penetration areas in red.
Saw cut: Flowing from saw cut; seems to be high flow with visible water movement and pooling ~2 inches deep.
Wall/Floor Joint: Flowing from wall/floor joint; seems to be high flow (but less then the saw cut) with visible water movement and pooling ~1 inch deep.
Floor Joint: Flowing up between floor and concrete drive outside; seems to be high flow with visible water movement but minimal pooling.