Hi All,
Just looking for a bit of a guidance on an extension I'm building with a concrete floor. Existing house is a 1930's build, with a slate DPC, then a course of bricks and then an injected damp proof that was put in at some point. I have no idea which of these is doing the work as we've had no damp issues and the injected one was put in before we got here.*
*You'd think, logically, you could say the injected one was done for a reason but trust me when I say don't assume anything with this houses moronic past.
Photos Here: https://imgur.com/a/gHIMp7M
Existing floor level is somewhere between Course 1 and Course 2 above the slate and is a combination of suspended and concrete. My extension will have a doorway onto the existing concrete floor, but it'll be different flooring so I'm not precious about millimeter precision here - even a reasonable step down is fine.
So with that in mind, where would you naturally be inclined to create the new DPC level and final floor level?
The BCO has said not to worry about a vertical DPC - so I figure I've got a few choices:
So what would the more experienced folks be inclined to do?
Just looking for a bit of a guidance on an extension I'm building with a concrete floor. Existing house is a 1930's build, with a slate DPC, then a course of bricks and then an injected damp proof that was put in at some point. I have no idea which of these is doing the work as we've had no damp issues and the injected one was put in before we got here.*
*You'd think, logically, you could say the injected one was done for a reason but trust me when I say don't assume anything with this houses moronic past.
Photos Here: https://imgur.com/a/gHIMp7M
Existing floor level is somewhere between Course 1 and Course 2 above the slate and is a combination of suspended and concrete. My extension will have a doorway onto the existing concrete floor, but it'll be different flooring so I'm not precious about millimeter precision here - even a reasonable step down is fine.
So with that in mind, where would you naturally be inclined to create the new DPC level and final floor level?
The BCO has said not to worry about a vertical DPC - so I figure I've got a few choices:
- Totally ignore existing DPC's, build my DPC to where I want my floor level to be
- Build my DPC to the slate OR the injected course (Which one!) and have the floor level there
- Build my DPC to the above, but don't pour the concrete until I've got some more courses on and have the floor level above the DPC
So what would the more experienced folks be inclined to do?