Does SMARTCORE waterproof flooring need underlayment? While most products sold by the best vinyl plank flooring brands have an attached underlayment, SmartCore does not. That’s not a problem in itself, and Lowes pairs a recommended underlayment with the product.
Is SMARTCORE really waterproof? SMARTCORE is 100% waterproof. That means no swelling, cracking or peeling when wet. So you can install it anywhere. Even kitchens, bathrooms, mudrooms and basements.
Do you need a moisture barrier under waterproof vinyl plank flooring? Existing Flooring
Meaning, if you’re going to install vinyl plank flooring over tile, vinyl flooring, and even hardwood. As with the plywood floor, there’s no need to worry about a moisture barrier; the underlayment should provide cushioning and sound-deadening benefits.
Do you need a moisture barrier under vinyl plank flooring on concrete? Vinyl floors under 4mm should be installed right over the subfloor. If you have any areas on a concrete subfloor with moisture concerns, it is recommended to use a vapor barrier underlayment that will not add any cushion to the planks.