Hey everyone! I'm looking for some advice on how to raise my concrete subfloor by half an inch so that I can properly install LVP and have it match the height of my other floors. I want to keep it removable in case I decide to tile later, so I'm trying to avoid self-leveling compounds due to their high cost. What alternatives do you suggest? Could cement board work? I'd really appreciate any tips—thanks a bunch!
1 Answer
Cement board might end up being pricier than you expect, especially when you factor in the adhesive needed to install it. It costs around £10 per square meter for the board and adhesive. Self-leveling compounding usually comes out at about £6 per square meter at 10mm thickness, and it would save a lot of time. But overall, it may not be the best match for future tiling if you want full height.
I've seen multiple sources suggesting self-leveling compound is 1.66 kg per mm/m²; you'd need about 41.5 kg for 5mm across 5m², so keep that in mind. If you want to tile later, removing the cement board would likely be easier.