I'm briefly looking into how to cheaply sort out an old garage floor (for my father).
It's almost constantly damp, due to some kind of water course that seeps through the land between the houses. It has always been like this.
The garage is an old one, built on top of a tarmac driveway that runs between two semi-detached houses. The houses next door are higher up by a good five foot.
The floor is therefore tarmac, the sides are cast concrete (pebble dashed outside) and the roofing is asbestos panels - which have since been covered over with steel corrugated panelling to keep the rain out.
Seeing as there's constant moisture seeping under the tarmac and perhaps even over the tarmac at times, it tends to soak up into the garage, making the whole thing damp.
Anything stored in there just rusts and/or goes mouldy. (The thing is full of old junk in various states of rust and disrepair). It is a bit of a poor selling point for the house.
It is too big a job to pull the whole thing down, especially dealing with the asbestos, which we suspect will be a nightmare and costly to dispose of.
We therefore want to try and leave it all in place and just make the garage less damp - as easy and as cheaply as possible, preferably DIY.
I've found some kind of plastic floor covering that pours out like paint and then sets. However, I do not know if doing this would just cause more problems, giving the water nowhere to go.
The idea of getting some old wooden forklift pallets was also being considered to do the same kind of job of creating a "spaced-off floor", but they may be too thick and too uneven. The composite material doesn't rot and is waterproof. It is quite expensive, but it may be the easiest and quickest to lay.
The concrete walls are actually not too bad when you are above a few inches off the floor, it is mainly the floor that's the problem. There's not enough room between the houses to park a car in the garage, so weight is not a problem. At most, it needs to take a motorbike.
These are just basic ideas at the moment. Can somebody advise what may be the best way to sort such a problem out?
The best way is to raise the floor by concreting it, this will prevent it from flooding, then at a later date you could tile it to stop damp from seeping through. There isn't a cheap way to avoid it really, if you want to stop it from flooding
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