Hello all. Just helped the neighbour take down his very rotten wooden conservatory (just leant on it and over it all went in a pile of powder!).
Anyway, this was built on a slab foundation which looks like it was just poured on top of the ground (though it is about 6inches thick at least).
On the outer edge (edge farthest from the back of the house) I could get can get my fingers under slab, so soil has either washed away or slab was just cast on top of the garden. The slab is much lower at this point as well and the whole thing looks as if it has moved a good 1" and a half away from the house taking with it the outside half of a full height wall! Huge diagonal crack in the wall i can get half my hand in!
We are going to build a new conservatory there and as the knackered walls will need to come down neighbour is going to get a slightly larger conservatory. Should we completely kango out the raft that is there and effectively start again or (as new conservatory will be slightly bigger) just leave it there put new trench foundation in around the outside brick up to slab height and then level the whole base up by pouring new concrete between new wall and existing slab all around and over the top of existing base until we have a nice level base again? Hope that kind of makes sense? I think that might give some dpc issues though?
Thoughts welcome. Thanks!
DaveJ
Anyway, this was built on a slab foundation which looks like it was just poured on top of the ground (though it is about 6inches thick at least).
On the outer edge (edge farthest from the back of the house) I could get can get my fingers under slab, so soil has either washed away or slab was just cast on top of the garden. The slab is much lower at this point as well and the whole thing looks as if it has moved a good 1" and a half away from the house taking with it the outside half of a full height wall! Huge diagonal crack in the wall i can get half my hand in!
We are going to build a new conservatory there and as the knackered walls will need to come down neighbour is going to get a slightly larger conservatory. Should we completely kango out the raft that is there and effectively start again or (as new conservatory will be slightly bigger) just leave it there put new trench foundation in around the outside brick up to slab height and then level the whole base up by pouring new concrete between new wall and existing slab all around and over the top of existing base until we have a nice level base again? Hope that kind of makes sense? I think that might give some dpc issues though?
Thoughts welcome. Thanks!
DaveJ
