Do I need an underlayment?

You do not! Modin Rigid Plank comes with a pre-attached underlayment, and is designed to install directly over your existing flooring or sub-floor, without any additional underlayment required.

You do not! Our specially designed pre-attached underlayment is a closed cell, high density IXPE that is 100% waterproof, is a great insulator, and offers great sound insulation (up to IIC 64 / STC 62).