Levelling compound

[Dandal88]

Hello,

I've knocked a wall down between kitchen/dining room and have removed all flooring as we want to have all same flooring downstairs.

See attached photos, the floors are slightly different levels, there's about a 15mm difference between the old floors at one end (see photo of the level) and at the other end its just short of 10mm lower. The lower floor area is about 8.4sqm. Id like to just come up to the higher floor and not do the whole room, as I can see that turning into doing the whole ground floor = £££.

I'll do a proper calculation later, but for the thickness I need, I might need somewhere between 6-9 bags of levelling compound. I'm aware it all sets quick, so am I better off doing a few bags at a time, let everything set and dry, then continue with the other bags until the level is correct; or shall I do it in one go where I just knock a bag up, chuck it down, quickly knock another bag up, chuck it down etc...

Thoughts?

Thanks

 

[23vc]

If you were doing it by the book you’d do the whole lot in one go, but you’re highly likely to then come unstuck unless you’ve got loads of experience. Nothing wrong with building it up in layers. It’s not likely to delaminate once it’s in place. Just check whether you’re better off priming between layers, based on which product you’re using

 

[Dandal88]

If I can't find that information out, would priming between layers be worth doing if in doubt?

 

[23vc]

If it was the cement/latex bagged stuff I’d probably only prime if it had dried completely, I’d trust it to stick to itself otherwise. A dash of watered down SBR probably wouldn’t harm either tho. You could try contacting the manufacturer tech support also …