Browse Forums Building A New House 1 May 13, 2018 11:44 am Hi, We built a new house, and the builder at the last minute suggested a wine cellar in one of the 2x3 metre gaps in our raft slab. He put down plastic, and poured the concrete when they poured the slab. Unfortunately, he didn't put in any drainage underneath and I think the plastic barrier got damaged during installation. In wet weather, the cellar fills up with 2-10 inches of water. We live in a VERY high clay content suburb, and it appears the water is leeching through, up from the bottom. The floor doesn't have a grade downhill nor rebate for a sump pump. Not sure what to do. Any advice greatly appreciated. The builder doesn't have any idea, and is now saying he should've put in ag drainage etc (way too late now) Some things I'm considering: - putting in some more concrete to get a grade in the floor, and have it run into a slot for a sump pump (not sure if extra concrete can be added now 6 months after it's all set) - getting some of the latex type negative barrier stuff, and tanking the whole thing - Putting in a false floor and having a pump underneath (probably a lifetime of mold) Thanks a lot for your help! Damp floor water starting to come inLike ⋅ Add a comment ⋅ Pin to Ideaboard ⋅ Like ⋅ Add a comment ⋅ Pin to Ideaboard ⋅ Re: Wine Cellar Flooding: advice please 2May 13, 2018 12:10 pm sxwallac You will need to 1.get the correct Engineering/Construction Details to start with 2.Remove the concrete slab 3.Put in a perimeter drainage system and sump + pump 4.Install a one piece Dry liner 5. Repour the concrete slab 6. Brick up the wall Goodluck Designer,Engineer (Civil,Const & Envir),Builder,Concrete & Masonry Contract.Struct Repairs Re: Wine Cellar Flooding: advice please 3May 13, 2018 12:32 pm StructuralBIMGuy @sxwallac You will need to 1.get the correct Engineering/Construction Details to start with 2.Remove the concrete slab 3.Put in a perimeter drainage system and sump + pump 4.Install a one piece Dry liner 5. Repour the concrete slab 6. Brick up the wall Goodluck Thanks mate. Yeah, our builder let us down here. We had no idea about this kind of thing (first house build), and trusted he knew what he was doing. Our mistake. So, house is completely finished. Removing slab etc as you describe would be well over 300K$ for front house remove and rebuild, and probably 6 months of work. We can do the perimeter drainage (landscaping isn't finished) to try to keep the surrounding soil less moist. The tanking stuff (reverse sealing) might be OK for dry lining. We don't actually care too much what it looks like... Given there's no chance of pulling up the slab, what options do we have? Cheers + thanks, Scott. Until you find the cause of the flooding you need to take action to mitigate potential damage to your home. Get automatic float pump and dig a pit then connect to power… 2 4851 The bottom of the downpipe has been taped (see the black tape) to seal the necessary gap between the downpipe and the adaptor that would normally prevent the downpipe… 3 9226 Versaloc is a mortarless besser block system that still needs a properly engineered footing. If you just do a 400x200 footing it will fail in time. At 17m long you need it… 1 17790 |