Retaining wall against garage and drainage
I am in a new build and have a sloping garden. I have a gardener who has leveled it into 2 levels and put in a retaining wall, made out of sleepers screwed together and placed on concrete, across the whole garden and also behind/against the garage wall.
For damp proofing, he has put 2 strips of plastic in between the garage and the sleepers....not much room for anything else. You can see the plastic sticking out of the right hand side.
He plans to put drainage behind the length of the retaining wall and feed it into the drain at the end of the garage.
Is this all ok?I've a nasty feeling that
1.there needs to be a larger gap between the garage wall and retaining sleeper wall and
2. the damp course/plastic sheet needs to go under the concrete, up the wall and stick out of the top of the sleepers
Also, he's put sleepers against my neighbours garage with no plastic sheet at all, stood on concrete.... is this ok? I thought we needed gravel then the wall?
....advice please as I'm worried he's botching it all up....pics to follow.... Thanks for any help!