Hi we have recently moved in an old house, when it rains heavily we get water coming up from under the tiles in our laundry. I'm guessing this part of the house was originally outside and has been closed in. The floor is about 60mm lower than the rest of the house. I'm trying to decide if we should paint on a waterproof membrane or lay a concrete lpad over it. Or do we need to rip up the tiles and lay polythene down and then concrete over it. Any advice would be much appreciated. We have an amazing property on the West Coast of the south island in NZ, but the house is going to be a work in progress for a very long time. Thanks 😁
Thanks for your reply. Yeah I have been working on fixing the drainage outside and guttering it has made a difference. But we are still getting water coming up in the centre of the room under the tiles. So I'm guessing we will need to dig up the floor. It's sitting straight on the ground I suspect. Thanks I might have to get the professionals in.
Kaniere: Thanks for your reply. Yeah I have been working on fixing the drainage outside and guttering it has made a difference. But we are still getting water coming up in the centre of the room under the tiles. So I'm guessing we will need to dig up the floor. It's sitting straight on the ground I suspect. Thanks I might have to get the professionals in.
If the floor was laid without polythene under the concrete but is low enough that you can add more concrete/lplaster you can add a polythene layer mid slab. You don't necessarily have to rip the existing out.
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