Roberts Moisture Barricade Polyethylene Film, 120 Sq Ft Roll, Provides Moisture Protection Can Be Used For Laminate Flooring With Pre-Attached Underlayment Moisture Barricade Is Designed For Use On Concrete Slabs Use With Standard Foam Underlayment To Protect Against Moisture Not For Use With Wood Subfloors Roll Unfolds To Cover An Extra Large 10 Ft X 12 Ft Area 6 Mil Thick Polyethylene Film For Long Life.