Best Moisture Barrier Underlayments

360 Sq Ft Acoustical Underlayment with Vapor Barrier for Luxury Vinyl Flooring

FLOORLOT GoldMax Premium Floor Underlayment - 200 sqft Roll - 3mm Thick - with Moisture Barrier

400SQFT AMERIQUE Premium 3 mm Thick Flooring Underlayment Padding with Tape & Vapor Barrier 3 in 1 Heavy Duty Foam (400SF Total, 200SF/Roll), 400 sq. ft., Silver Chrome (Pack of 2)

600Sqft AMERIQUE Premium 3 Mm Thick Flooring Underlayment Padding with Tape & Vapor Barrier 3 in 1 Heavy Duty Foam (600SF Total, 200SF/Roll), 600 Sq.'., Silver Chrome (Pack of 3)

Autrends Vapor Barrier Tape, 7 Mil Polyethylene Tape Sealing Moisture Barrier Seam, Seal Tape for Crawl Space, Underlayment, Marine Use, White Insulation Tape, Waterproof, 4 Inch, 180 Foot Roll

600Sqft AMERIQUE Premium 3 Mm Thick Flooring Underlayment Padding with Tape & Vapor Barrier 3 in 1 Heavy Duty Foam (600SF Total, 200SF/Roll), 600 Sq.', Royal Blue (Pack of 3)

Tyvek Protec 120 Roof Underlayment 4' x 250' - 1 Roll

Crawl Space Vapor Barrier - 12 mil (10' x 25'), Thick Plastic sheeting, Drop Cloth Moisture Barrier Covering for Crawl Space Encapsulation, Blackout Plastic Painters Tarp, Black and White Panda Film

AMERIQUE 400SQFT 4TH Generation Luxury Platinum 2.5MM Thick Flooring Underlayment Padding 3-in-1 Heavy Duty Foam with Tape & Vapor Barrier, Extreme Sound Reduction & Moisture Protection

Crawl Space Vapor Barrier - 10 mil (10' x 25'), Thick Plastic sheeting, Drop Cloth Moisture Barrier Covering for Crawl Space Encapsulation, Heavy Duty Polyethylene Film, Black and White Panda Film