Visqueen’s 16 x 100 black polyethylene sheeting delivers 1,600 square feet of 6-mil moisture protection that meets ASTM D-4397-84 specifications. At 48-50 pounds per roll, this heavy-duty vapor barrier handles temperature extremes from -60°F to 150°F — crucial for Montana’s freeze-thaw cycles.
Contractors choose this for crawl spaces, under-slab vapor barriers, and agricultural buildings where code-compliant moisture protection matters. The black color blocks UV and stops weed growth underneath structures, while the 6-mil thickness provides superior puncture resistance compared to cheaper 4-mil alternatives.
Technical Specifications
| Specification | Value | Source |
|---|---|---|
| Coverage | 16 ft × 100 ft = 1,600 sq ft | Manufacturer |
| Thickness | 6 mil (0.006 inches) | Manufacturer |
| Weight | 48-50 lbs per roll | Manufacturer |
| Temperature Range | -60°F to 150°F | Manufacturer |
| Material | Polyethylene (LDPE) | Manufacturer |
| Color | Black (Opaque) | Manufacturer |
| Properties | Waterproof, rot-proof, chemical-resistant, tear-resistant | Manufacturer |
| Standard | ASTM D-4397-84 | Manufacturer |
Why 6 Mil Matters for Montana Construction
Six mil is the industry standard for vapor barriers and building code compliance — 4 mil is generally considered light-duty and prone to tearing. That extra 2 mils of thickness makes the difference between a vapor barrier that survives rocky Montana soil and one that gets punctured during installation.
The temperature resistance from -60°F to 150°F handles Montana’s temperature swings without becoming brittle in winter or degrading in summer heat. The material stays waterproof, rot-proof, and chemical-resistant through years of ground contact.
For installation, overlap sheets by 6 to 12 inches to prevent moisture migration. Use dedicated vapor barrier seam tape or butyl tape for water-tight seals, and run the barrier 6 to 12 inches up walls, securing with tape or furring strips.
Installation and Coverage Efficiency
The 16-foot width cuts installation time compared to narrower rolls. Fewer seams mean fewer potential failure points for moisture infiltration. One roll covers 1,600 square feet — enough for a 40×40 shop floor or a substantial crawl space.
Limited UV resistance means this product can become brittle if left in direct sunlight for months. It’s designed for covered applications — under slabs, in crawl spaces, beneath structures. The opaque black color inhibits weed growth beneath decks and outbuildings while providing privacy and concealment during construction.
Before installation, clear sharp objects and ensure the sub-floor or ground is relatively level. The material cuts easily with standard utility knives or scissors, and tools required include utility knife, vapor barrier tape, and weighted objects or fasteners for outdoor use.
The Bottom Line
Visqueen 16 x 100 black 6 mil delivers what matters: building code compliance for moisture barriers, proven durability at Montana temperature extremes, and efficient coverage that reduces labor. The superior puncture resistance compared to 4 mil alternatives prevents callbacks from torn vapor barriers.
Contractors appreciate its strength, often citing it as being “2x stronger” than thinner options. For foundation work, crawl spaces, and agricultural buildings where moisture control determines longevity, this product earns its place on the jobsite.
Frequently Asked Questions
What’s the actual coverage area of this roll? The 16 ft × 100 ft dimensions provide 1,600 square feet of coverage. Factor in 6 to 12 inch overlaps for seaming when calculating material needs.
How cold can this material handle? Temperature resistance extends down to -60°F, well below Montana’s coldest recorded temperatures. The polyethylene stays flexible enough for winter installations.
Does the black color really stop weeds? Yes — the opaque black color blocks UV and visible light, preventing plant growth underneath. Clear sheeting allows light transmission and won’t prevent weed growth.
What thickness should I use for a crawl space vapor barrier? Six mil is the industry standard for vapor barriers and building code compliance. This product meets ASTM D-4397-84 specifications for construction applications.
How heavy is a full roll? The roll weighs approximately 48-50 pounds. Some users note the roll can be heavy and difficult to handle for one person.
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