I'm currently building a outhouse to use as a workshop gymn
I have laid 6 inch concrete trench foundations, with rebar added
I have currently laid concrete common for both leaves , 3 coarses high from foundations, and I have 2 questions:
1.Do I need to fill this cavity with concrete? as I was thinking of putting my inner leaf dpc 3 coarses high level with concrete floor and its dpm and have read there needs to be 225mm( 3 coarses free of cavity below the dpc),
2. The outer leaf is currently only 1 brick above external floor level so I was going to add 1 more coarse until I lay a dpc for the outer leaf ( to obtain the recoomended 150mm above external floor level)
So to elaborate the inner leaf dpc is at 3 coarses high, and the outer leaf dpc is 4 coarses high is this ok to do ? have the outer dpc 2 coarses higher than the inner leafs dpc?
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