The previous owners of our house built this extension but for some reason didn’t use the entire slab. Now behind our house there is a weird extension of about 3 feet that looks awful. Rainwater also leaks underneath the wall because they didn’t install any flashing, hence why they added the tar…it still leaks on occasion.
We’ve considered cutting it, but the slab is 18″ thick and would cost a fortune to remove. Theres also the risk of damage to the wall. Now I’m thinking I should just tile over it and I could level it all away from the house with the thinset. My question is, is this a good idea? Can I just tile directly on top of the slab and tar? The tar is rock hard and very hard to remove. I also might have the little 3 foot section cut off – just think it might look better.
Any other suggestions?