![What type of moisture barrier should I use under vinyl flooring laid on slab? I pulled up the old floor, whoever put it down had no barrier and this area is prone What type of moisture barrier should I use under vinyl flooring laid on slab? I pulled up the old floor, whoever put it down had no barrier and this area is prone](https://preview.redd.it/what-type-of-moisture-barrier-should-i-use-under-vinyl-v0-grvi74su265a1.jpg?width=640&crop=smart&auto=webp&s=6d444d2280dde9995a4bd65dc69afecfb169866e)
What type of moisture barrier should I use under vinyl flooring laid on slab? I pulled up the old floor, whoever put it down had no barrier and this area is prone
![QuietWalk 100 sq. ft. x 3 ft. x 33.34 ft. x 1.4mm Acoustical Underlayment with Vapor Barrier for All Vinyl Plank Flooring QWLV100 - The Home Depot QuietWalk 100 sq. ft. x 3 ft. x 33.34 ft. x 1.4mm Acoustical Underlayment with Vapor Barrier for All Vinyl Plank Flooring QWLV100 - The Home Depot](https://images.thdstatic.com/productImages/6646438f-d13d-4574-8e8a-ee1d95f4f476/svn/quietwalk-underlayment-qwlv100-31_600.jpg)
QuietWalk 100 sq. ft. x 3 ft. x 33.34 ft. x 1.4mm Acoustical Underlayment with Vapor Barrier for All Vinyl Plank Flooring QWLV100 - The Home Depot
![Floorlot Blue Flooring Underlayment with Moisture Barrier for Laminate and Hardwood Floors, (3mm Thick, 200 sq.ft Roll) - Amazon.com Floorlot Blue Flooring Underlayment with Moisture Barrier for Laminate and Hardwood Floors, (3mm Thick, 200 sq.ft Roll) - Amazon.com](https://m.media-amazon.com/images/I/81-T5KALTNL.jpg)
Floorlot Blue Flooring Underlayment with Moisture Barrier for Laminate and Hardwood Floors, (3mm Thick, 200 sq.ft Roll) - Amazon.com
![QuietWalk 100 sq. ft. x 3 ft. x 33.34 ft. x 1.4mm Acoustical Underlayment with Vapor Barrier for All Vinyl Plank Flooring QWLV100 - The Home Depot QuietWalk 100 sq. ft. x 3 ft. x 33.34 ft. x 1.4mm Acoustical Underlayment with Vapor Barrier for All Vinyl Plank Flooring QWLV100 - The Home Depot](https://images.thdstatic.com/productImages/46f72c53-ff3d-4ad6-90c7-f1325ca53515/svn/quietwalk-underlayment-qwlv100-fa_600.jpg)
QuietWalk 100 sq. ft. x 3 ft. x 33.34 ft. x 1.4mm Acoustical Underlayment with Vapor Barrier for All Vinyl Plank Flooring QWLV100 - The Home Depot
![Project Source 26.33-ft x 3.83-ft x 6-mil Premium Poly Film Flooring Underlayment (100-sq ft /Roll) in the Flooring Underlayment department at Lowes.com Project Source 26.33-ft x 3.83-ft x 6-mil Premium Poly Film Flooring Underlayment (100-sq ft /Roll) in the Flooring Underlayment department at Lowes.com](https://mobileimages.lowes.com/productimages/6c58b002-ad1a-4447-b43a-9d5af64acdde/47958759.jpg)
Project Source 26.33-ft x 3.83-ft x 6-mil Premium Poly Film Flooring Underlayment (100-sq ft /Roll) in the Flooring Underlayment department at Lowes.com
![3in1 Vinyl Flooring Underlayment - High Density IXPE Vapor Barrier Padding - IIC 69 - Bestlaminate - 1mm - Green - 100 sf/roll - Amazon.com 3in1 Vinyl Flooring Underlayment - High Density IXPE Vapor Barrier Padding - IIC 69 - Bestlaminate - 1mm - Green - 100 sf/roll - Amazon.com](https://m.media-amazon.com/images/I/417Cf8RfDnL._AC_UF894,1000_QL80_.jpg)
3in1 Vinyl Flooring Underlayment - High Density IXPE Vapor Barrier Padding - IIC 69 - Bestlaminate - 1mm - Green - 100 sf/roll - Amazon.com
![All Globe Inc, Silicone Vapor Shield for Hardwood Floors, 200 SF Roll - Non-Toxic, Recycled, Nail Down Floor Vapor Barrier All Globe Inc, Silicone Vapor Shield for Hardwood Floors, 200 SF Roll - Non-Toxic, Recycled, Nail Down Floor Vapor Barrier](https://res.cloudinary.com/greenbuildingsupply/image/upload/f_auto,q_auto,c_pad,h_580,w_580/large/All-Globe-Silicone-Vapor-Barrier-Installation-57981-RS-2-LG.jpg)
All Globe Inc, Silicone Vapor Shield for Hardwood Floors, 200 SF Roll - Non-Toxic, Recycled, Nail Down Floor Vapor Barrier
![QuietWalk Sound Absorption and Vapor Barrier 33.34-ft x 3-mm Premium Felt Flooring Underlayment (100-sq ft /Roll) in the Flooring Underlayment department at Lowes.com QuietWalk Sound Absorption and Vapor Barrier 33.34-ft x 3-mm Premium Felt Flooring Underlayment (100-sq ft /Roll) in the Flooring Underlayment department at Lowes.com](https://mobileimages.lowes.com/productimages/ade82814-7d8a-4e9e-91fe-83b14b53ab0d/49643897.jpg)
QuietWalk Sound Absorption and Vapor Barrier 33.34-ft x 3-mm Premium Felt Flooring Underlayment (100-sq ft /Roll) in the Flooring Underlayment department at Lowes.com
![2in1 Silent Vapor Barrier Underlayment for Vinyl Flooring | EVA High-Density | IIC 70db | 1.5mm 100sf roll - Amazon.com 2in1 Silent Vapor Barrier Underlayment for Vinyl Flooring | EVA High-Density | IIC 70db | 1.5mm 100sf roll - Amazon.com](https://m.media-amazon.com/images/I/617jFB2VpbL.jpg)
2in1 Silent Vapor Barrier Underlayment for Vinyl Flooring | EVA High-Density | IIC 70db | 1.5mm 100sf roll - Amazon.com
![QuietWalk 100 sq. ft. 3 ft. x 33.3 ft. x 3 mm Underlayment with Sound and Moisture Barrier for Laminate and Engineered Floors QW100B1LT - The Home Depot QuietWalk 100 sq. ft. 3 ft. x 33.3 ft. x 3 mm Underlayment with Sound and Moisture Barrier for Laminate and Engineered Floors QW100B1LT - The Home Depot](https://images.thdstatic.com/productImages/fc17c62e-c3d7-468c-90a7-f5f6e1f9dad8/svn/quietwalk-underlayment-qw100b1lt-76_600.jpg)
QuietWalk 100 sq. ft. 3 ft. x 33.3 ft. x 3 mm Underlayment with Sound and Moisture Barrier for Laminate and Engineered Floors QW100B1LT - The Home Depot
![QuietWalk 100 sq. ft. 3 ft. x 33.3 ft. x 3 mm Underlayment w/Sound & Moisture Barrier for Laminate & Engineered Floors (30-Pack) QW100B1LT - The Home Depot QuietWalk 100 sq. ft. 3 ft. x 33.3 ft. x 3 mm Underlayment w/Sound & Moisture Barrier for Laminate & Engineered Floors (30-Pack) QW100B1LT - The Home Depot](https://images.thdstatic.com/productImages/9688e324-08b7-424e-b77d-fc57589cb0ae/svn/quietwalk-underlayment-qw100b1lt-31_600.jpg)