Ready to hire?
Post your job in minutes, browse real reviews and choose who to speak to.Post a jobNeed some tips or advice?
Ask a questionDamp Proofing
Concrete slab for workshop shed. Should DPM be used between the MOT type 1 and concrete?
Anonymous user 03/03/2024 - 3.43 PM
Large concrete slab for workshop shed, should a DPM be used between the MOT type 1 and concrete? If so, what type of sand should be used to go on top of the MOT before laying down the DPM on top? As without sand i think the MOT will perforate the plastic as its very sharp in places plus the weight of the concrete going on top. Cheers
Are you a tradesperson and able to answer this question?
3 Answers
Rdm plastering
Rating: 5 out of 5
The sand you should use is sharp Sand leveled out so DPM can be laid safely on top
Answered26 August 2022
12
Anonymous user
From my point of view I would personally lay MOT and compact and after this I would then suggest using ordinary building sand as this is because it compacts Better than sharp sand and the DPM will sit Better on top
Answered2 September 2022
0
Pb plastering
Rating: 5 out of 5
use crush and run and whack the crush and run make sure it's at least 4 inches. apply Dpm and install insulation and then apply more Dpm and then concrete to damp
Answered13 September 2022
0