Best Moisture Barrier Underlayments

Crawl Space Vapor Barrier - 12 mil (10' x 100'), Heavy Duty Plastic sheeting, Concrete Vapor Barrier Covering for Crawlspace Encapsulation kit, Thick Polyethylene Film, Black and White Panda Film

Blue Summit Supplies Vapor Barrier Tape, PE 9mm Polyethylene Tape, Moisture Barrier Seam for Crawl Space or Marine Use, Waterproof White, 3.78" Wide, 180' Length

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.'., Royal Blue (Pack of 2)

QuietWalk LV Luxury Vinyl, Laminate, or Wood Underlayment (Float, Glue, or Nail) w/Vapor Barrier- Sound Reduction, Compression Resistant, Moisture Protection 6'x60’ Roll (Covers 360 sf) QW360LV

Bestlaminate Blue Vapor 3-in-1 Flooring Underlayment Bundle - 500sf - 5 Rolls

Whitecap Dimple Drainage Matting, 4' x 50' - Improves Water Movement and Drainage - Waterproof Moisture Barrier Foundation Wrap and Floor Underlayment - Sub Floor Waterproof Membrane

AMERIQUE AMPD2M800BL Premium Heavy Duty Foam Flooring Underlayment Padding with Vapor Barrier & Tape, Coverage: 800 sq. ft, Royal Blue, Square Feet (Pack of 4)

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

Vapor Barrier Tape - 4 inch x 180' Roll, Made in USA, White Polyethylene Tape for Crawl Spaces & Moisture Barriers, Waterproof Seal & Seam Tape for Underlayment, Insulation, and Plastic Liners (1)

AMERIQUE 691322313741 800SQFT Wood, Bamboo & Laminate Flooring Underlayment Padding with Vapor Barrier 3-in-1, 2MM Thick, (800SF Total, Pack of 4 Rolls, 200SF/Roll), Royal Blue, 800 Square Feet