The following article highlights 20 mil polyethylene sheeting options commonly used as crawl space vapor barriers and drop cloths. Each product is evaluated for durability, size, and multi-purpose use, helping you select a reliable barrier for moisture control, weather protection, and containment needs. Below is a quick summary of the featured products to jump-start your decision.
| Product | Size (ft) | Thickness | Key Use |
|---|---|---|---|
| PureSpace Armor 20 Mil Vapor Barrier | 10 x 50 | 20 Mil | Crawl space vapor barrier |
| Whitecap Crawl Space Vapor Barrier | 12 x 100 | 20 Mil | Encapsulation and moisture barrier |
| PureSpace Armor 20 Mil Vapor Barrier | 10 x 100 | 20 Mil | Crawl space vapor barrier |
| Farm Plastic Supply Panda Film | 6 x 50 | 20 Mil | Crawl space barrier and drop cloth |
| Farm Plastic Supply Dura Skrim | 20 x 100 | 6 Mil | Reinforced vapor barrier and tear resistance |
The table helps identify size, thickness, and typical applications. Each product below provides more detail, including features and practical considerations for installation and long-term durability.
PureSpace Armor 20 Mil Vapor Barrier 10×50
- 20 Mil White Plastic Sheeting – 0.02 inches thick, low-density polyethylene
- Dimensions: 10 ft x 50 ft, covers 500 sq ft
- Multi-purpose utility: moisture barrier, painter’s tarp, dust containment
- Heavy duty and tear resistant; a true 20 mil film for durability
- Simple deployment: unroll and use as needed
The product is positioned as a heavy-duty vapor barrier suitable for crawl spaces, basements, and general covering tasks. Its 20 mil thickness aims to resist tearing under typical encapsulation use while providing moisture control and protection for stored items or concrete work.
Whitecap Crawl Space Vapor Barrier 20 Mil 12×100
- .020 inches thick plastic sheeting engineered from low-density polyethylene
- Dimensions: 12 ft x 100 ft
- Durable 20 mil vapor barrier with multi-purpose utility
- Designed to endure rain, wind, cold and heat for long-term use
- Versatile: moisture barrier, painting protection, dust containment
Whitecap’s vapor barrier emphasizes longevity and resilience for encapsulation projects. The 12×100 roll enables large-area coverage, aiding efficient crawl space sealing or ground cover for moisture control in basements and related spaces.
PureSpace Armor 20 Mil Vapor Barrier 10×100
- 20 Mil White Plastic Sheeting with 0.02 inch thickness
- Size: 10 ft x 100 ft, covering 1000 sq ft
- Multi-purpose: moisture barrier, painter’s tarp, dust containment
- Heavy-duty construction designed for crawl spaces and encapsulation
- Simple setup—unpackage and unroll for immediate use
This option provides extended coverage for larger crawl spaces or encapsulation projects. The strong 20 mil polyethylene film is suitable for long-term moisture control and can serve as a reliable barrier during and after installation.
Farm Plastic Supply Panda Film 20 Mil 6×50
- 20 Mil Black/White Panda Film with 0.02 inch thickness
- Dimensions: 6 ft x 50 ft
- Dual-sided surfaces: black side blocks light; white side offers high reflectivity
- Durable vapor barrier suitable for crawl spaces and droppings containment
- Reinforces moisture protection and can be reused in some settings
Panda film from Farm Plastic Supply combines thickness with reflective and light-blocking properties. The black and white sides offer practical advantages for crawl space environments, while the 20 mil film resists tearing and moisture passage during encapsulation and long-term use.
Farm Plastic Supply Dura Skrim 6 Mil 20×100
- 6 Mil reinforced plastic sheeting (Dura Skrim) with string reinforcement
- Dimensions: 20 ft x 100 ft
- Tear resistance and uniform tear protection for demanding coverings
- Vapor barrier suitable for construction and encapsulation projects
- Strengthened with scrim reinforcement for added durability
Dura Skrim adds scrim reinforcement to a thicker plastic sheet, delivering improved puncture resistance. While not 20 mil, its reinforced design makes it a viable choice for protecting surfaces and acting as a vapor barrier in challenging environments where additional tear resistance is needed.
Buying Guide
Key purchase considerations when selecting 20 mil polyethylene sheeting for crawl spaces and related applications:
- Thickness and durability: A true 20 mil barrier offers strong moisture resistance and tear resistance, ideal for encapsulation and long-term use. Consider alternatives with reinforcement (such as Dura Skrim) if higher puncture resistance is needed.
- Size and coverage: Calculate the total area to cover to determine roll length. Larger rolls (e.g., 12×100 or 10×100) reduce seams and potential moisture intrusion.
- Surface properties: White film reflects light, which can help with visibility in dark spaces, while black/white panda film blocks light on one side, which can affect ground moisture behavior and light exposure.
- Versatility: Look for multi-purpose features—moisture barrier, painter’s tarp, dust containment, and protective coverage for lumber or equipment.
- Durability under environmental conditions: Heat, cold, wind, and moisture tolerance are important for crawl spaces and basements. UV resistance may be less critical indoors but can matter in sun-exposed areas prior to installation.
- Ease of use: Unroll-and-use options simplify installation, but ensure there are no weakened seams or perforations that could compromise barrier integrity.
- Cost versus lifecycle: A higher upfront cost for thicker, reinforced film can reduce replacement needs and maintenance, offering long-term savings in professional encapsulation projects.
- Regulatory and safety considerations: Ensure the material complies with local building codes and moisture-control best practices for crawl spaces and encapsulation projects.
In summary, when choosing 20 mil polyethylene sheeting for crawl space encapsulation, prioritize true 20 mil thickness, sufficient roll dimensions to minimize seams, and a product with proven durability and moisture-blocking capabilities. Consider reinforced options if you anticipate heavy use or potential punctures, and select a size that aligns with your space for efficient installation.