We have bought a house with an attached double garage. The garage was not insulated, so I've been working on that now. The walls are not built on Lecablocks but directly on the slab. I plan to have plywood and plasterboard on the walls.
To the question. What should I have at the floor level to prevent water from seeping in?
To the question. What should I have at the floor level to prevent water from seeping in?
To prevent moisture from moving from the concrete to the wooden sill, you can use, for example, roofing felt, sill insulation, or possibly age-resistant plastic. The latter might be a bit weak, but it should actually work, especially if it concerns a slab insulated with polystyrene from below.
The next problem you might have in a garage is water puddles, due to car washing or melting snow, against the sill. This is a bit trickier as whatever you use to protect the sill really needs to be properly waterproof and high enough to protect against any potential puddle.
The next problem you might have in a garage is water puddles, due to car washing or melting snow, against the sill. This is a bit trickier as whatever you use to protect the sill really needs to be properly waterproof and high enough to protect against any potential puddle.
A possible solution would be to apply a bead of silicon where the sill and slab meet. And let the drywall start 1cm above the slab. These are just some ideas, nothing I've tried myself. Of course, there should also be some form of moisture protection between the concrete slab and the sill as Mikael_L writes.