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M4Panther t1_jdzuvus wrote

Reply to comment by Tricky-Development78 in Underlayment vinyl plank flooring by Thanossnapp

I want to keep the room as comfortable as possible. The concrete was poured in the 50's it's far from laser level. I figured the thermal break and the extra padding would help not to mention sound deadening.

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Superb_Gur1349 t1_je091o3 wrote

Most manufacturers recommend pouring a leveling compound first in order to prep the floor. if there is too much deviation, it will cause the joints of the planks to separate over time and ruin the floor.

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