Hi All
I live in a house that's built on a raft foundation so I have a 3ft concrete border around my house.
I want to do a rear patio at the back but the first 2 patio slabs will be on the raft and the remaining 4m will be on the soil.
As the raft is theoretically always moving separately from the other 4m laid on a lean mix base on top of the soil. What do I need to do to make an allowance for this so that I don't get cracking between the 3ft raft and the slabs laid on the soil?
I live in a house that's built on a raft foundation so I have a 3ft concrete border around my house.
I want to do a rear patio at the back but the first 2 patio slabs will be on the raft and the remaining 4m will be on the soil.
As the raft is theoretically always moving separately from the other 4m laid on a lean mix base on top of the soil. What do I need to do to make an allowance for this so that I don't get cracking between the 3ft raft and the slabs laid on the soil?