One of the most common questions we get about waterproof flooring. Here’s the straight answer about subfloors, underlayment and prep.
Book a Free ConsultationCall (601) 790-1030People often mix these up. The subfloor is the structural layer (plywood or concrete slab) that everything sits on. Underlayment is a thin pad between the subfloor and the flooring for sound, comfort and minor smoothing. Waterproof flooring still needs a sound subfloor — it just often floats over it without glue or nails.
Often yes — rigid waterproof plank can float over existing hard, flat, sound floors (tile, vinyl, wood). Carpet must come out. We assess your specific subfloor at the free measure and tell you honestly what prep it needs.
The floor is only as good as what’s under it. A little prep — leveling a dip, addressing moisture — is the difference between a floor that looks great for 20 years and one that shows every flaw. See our waterproof flooring page.
Many planks have an attached pad; if not, we add the right underlayment. Don’t stack two pads — it can cause flexing and void warranties.
Rigid waterproof plank can often float over existing hard, flat floors. Carpet must be removed. We assess the subfloor first.
It should be reasonably flat — SPC tolerates minor imperfections, but large dips need leveling to prevent flexing and gaps.
Usually yes — letting it adjust to the room and leaving proper expansion gaps prevents movement issues later.
Mississippi Pro serves Pearl and the Jackson metro. Visit our showroom at 1138 Weems Street, Pearl, or we'll bring samples to you. Free estimates.
Book a Free EstimateCall (601) 790-1030