
The new Viper II 6-mil under-slab vapor retarder exceeds all ASTM E 1745 Class C Specifications for plastic water vapor retarders used in contact with soil or granular fill under concrete slabs.
- 14-ft. by 210-ft. rolls
- Made from the latest generation of prime virgin resin
- VIPER II is also available in 10-mil Class C, 10-mil Class A and 15-mil Class A
Fill out the form below to request more information about Viper II 6-mil Vapor Retarder















![Lee Boy Facility 2025 17 Use[16]](https://p1-cms-assets.imgix.net/mindful/acbm/workspaces/default/uploads/2025/09/leeboy-facility-2025-17-use16.AbONDzEzbV.jpg?ar=16%3A9&auto=format%2Ccompress&fit=crop&h=135&q=70&w=240)