I'm rebuilding a 9 inch wall (on the existing foundations) and I just wanted some advice on whether I've got the right set up in regards to the DPC and vertical DPM.
The external floor level (concrete) is about 45cm higher than the internal floor level. Currently there is no dpc/dpm in the wall, so lots of damp on the inside wall. The internal floor is tiled, and I wont be lifting the tiles.
Q1. Is the detail in the attached drawing correct? am I missing anything in this set up?
Q2. What is the best vertical DPM to use in this instance? At the moment the options are:
1) Insert a 1200g plastic DPM sheet between the inner block and outer brick .
2) Build the external leaf first and then paint it with a liquid DPM (eg Black Jack DPM) and then build the internal leaf.
3) Build the external leaf first then stick Bituthene 3000 on the inside part of the engineering brickwork, and then build the inner block wall.
The internal room is a shop - I would prefer to have the DPM sandwiched so the tenant doesn't puncture the DPM if they ever drill into the wall. Access to waterproof the wall externally is restricted.
Thanks
The external floor level (concrete) is about 45cm higher than the internal floor level. Currently there is no dpc/dpm in the wall, so lots of damp on the inside wall. The internal floor is tiled, and I wont be lifting the tiles.
Q1. Is the detail in the attached drawing correct? am I missing anything in this set up?
Q2. What is the best vertical DPM to use in this instance? At the moment the options are:
1) Insert a 1200g plastic DPM sheet between the inner block and outer brick .
2) Build the external leaf first and then paint it with a liquid DPM (eg Black Jack DPM) and then build the internal leaf.
3) Build the external leaf first then stick Bituthene 3000 on the inside part of the engineering brickwork, and then build the inner block wall.
The internal room is a shop - I would prefer to have the DPM sandwiched so the tenant doesn't puncture the DPM if they ever drill into the wall. Access to waterproof the wall externally is restricted.
Thanks
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