another cellar question... as the underslab is solid, firm and dry clay, do you think I'll need to dig it out and add a couple of inches of hardcore or could I just blind it with a thin layer of sand to level it off/protect the DPM ?
LJ
I'd lay hardcore and concrete first, then DPM then insulate and screed.
Dig ou as far as is necessary to do a proper job.
i.e. about 4" of conctete and hardcore, 2" of polystyrene and 3" of screed.
I'm not screeding the floor, the concrete will be finished floor level
I have/am, just wanted some input before I call the BCO out again
3" of screed ? a little on the excessive side aint it ?LJ
Not over insualation, if you don't want cracking...
HomeOwnersHub website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.