Is it necessary to level the floor with self-leveling putty before installing laminate flooring?
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I am going to install a laminate floor. I bought a 5 mm thick underlayment and foil. But when I removed the old carpet, I saw a large number of cracks and height differences. There is a 4-5 mm depression in the middle of the floor.
Does the floor need to be leveled with a self-leveling filler, or should the underlayment hide all these irregularities?
Answers
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Take gypsum plaster, prime the floor and pull through the plaster. The underlayment does not compensate for the differences.
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If 5mm is the maximum height difference, and less in other places, then I would recommend just laying the laminate on the subfloor, no extra work.
We had a similar situation, 2-3mm unevenness. It's been 2 years since the laminate was laid, nothing squeaks or falls off.
