Most common choice when it comes to flooring underlayments, 3in1 Vapor Barrier Underlayment is universal and affordable. Suitable for all types of subfloor including wood and cement subfloors. Ideal for for all flooring ranging from concrete slab, bamboo, floating and wood floors, or even laminates engineered hardwood! 3-in-1 construction includes: basic foam underlayment bonded with vapor barrier and pre-attached installation tape. Some 3-in-1 underlayments provide also sound reducing properties. All of them will have an overlap plastic film for a seamless protection against moisture.