Got a slab which I’m putting DPM and PIR and chipboard on top of. The slab dips in one corner by about 10mm, reckon I’ll get away with some sand under the celotex to level it or do I need SLC? There’s also another DPM under the slab.
Sand or SLC under PIR on slab
- Thread starter 23vc
- Start date
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Cant imagine that sand would move, but don't think I'd risk it for the sake of a bag of slc.
Sand and cement? Can you re-word in slightly simpler terms for a simple person?
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Excellent thanks. Sounds like a plan
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