Hello everyone.
I just had a patio installed. The pavers agrgued with me at the outset when I told them that it must be a minimum of 150mm below the DPC. They said 75mm was sufficient, but I insisted on 150mm. Eventually they conceded and went ahead with the work. However, I did not know that there are two DPC's in the house and the 150mm that they measured down from was from the higher DPC and I've just discovered that the patio is just about level with the lower DPC.
There is an ACO drain against the house at around the same level as the lower DPC. I have no idea what to do. Can anyone please advise me?
Thanks.
I just had a patio installed. The pavers agrgued with me at the outset when I told them that it must be a minimum of 150mm below the DPC. They said 75mm was sufficient, but I insisted on 150mm. Eventually they conceded and went ahead with the work. However, I did not know that there are two DPC's in the house and the 150mm that they measured down from was from the higher DPC and I've just discovered that the patio is just about level with the lower DPC.
There is an ACO drain against the house at around the same level as the lower DPC. I have no idea what to do. Can anyone please advise me?
Thanks.