Will Underlayment Level Floor?

Use an underlayment, floor leveler or floor patch product to fix low spots in a wood or concrete subfloor. An underlayment is a thin layer of material sandwiched between two other materials. ... Pour the liquid-like floor leveler onto the subfloor and smooth it out with a trowel.

Does underlayment help with uneven floors?

An uneven sub-floor can cause issues to arise prematurely even if the floors are top-notch. Underlayment can serve as a relatively simple fix to an uneven-subfloor. ... If all for sides of the room's perimeter are level, then underlayment should work for you.

Will underlay level a floor?

If you have an uneven sub surface, a underlay floor can potentially help level it out, but we don't recommend this at all. An uneven surface under a floor can cause boards to sink and shift, potentially cracking or splitting them.