STEGOCRAWL® Wrap 15-Mil Vapor Barrier

Premium 15-Mil Crawl Space Vapor Barrier — The Industry's Best

StegoCrawl® Wrap 15-Mil Vapor Barrier is an innovative, multi-layer liner engineered for unrivaled performance in the most demanding crawl space conditions. With extraordinarily low water vapor permeance (below 0.010 perms) and 203.8 newtons of push-through resistance, string reinforcement is unnecessary — delivering a uniquely premium yet cost-effective solution even compared to thicker, reinforced products.

StegoCrawl 15-Mil is the #1 choice for crawl space encapsulation among both homeowners and professionals, and is an excellent choice as the soil-gas retarder for radon mitigation in new or existing homes with crawl spaces.

Physical Properties

• Thickness: 15 Mils
• Water Vapor Permeance: Less than 0.010 perms (Class I Vapor Retarder)
• Permeance After Conditioning: Less than 0.010 perms (wet, dry, and soaking)
• Puncture Resistance: 203.8 newtons
• Radon Diffusion Coefficient: 8.5 × 10⁻¹² m²/second
• Color: White
• Zero VOCs

Available Roll Sizes

• 5' × 200' = 1,000 sq ft (ideal for perimeter walls) — Approx. 71 lbs, folded onto 2'6" core
• 14' × 100' = 1,400 sq ft (ideal for ground cover) — Approx. 100 lbs

Applicable Standards (ASTM)

• Exceeds ASTM E1745 — Standard Specification for Water Vapor Retarders Used in Contact with Soil or Granular Fill Under Concrete Slabs
• ASTM F1249 — Water Vapor Transmission Rate
• ASTM D4833 — Index Puncture Resistance
• ASTM D1709 — Impact Resistance (Free Falling Dart)
• ASTM D882 — Tensile Properties of Thin Plastic Sheeting
• ASTM E154 — Permeance After Wetting, Drying, and Soaking
• ASTM D1434 — Gas Permeability Characteristics

Key Benefits of Crawl Space Encapsulation

• Energy Savings — Less moisture for your HVAC system to manage
• Radon & Soil Gas Reduction — Extremely low gas permeability helps block soil gas transmission
• Mold Prevention — Less moisture means reduced mold and mildew growth
• Improved Indoor Air Quality — Reduction in soil contaminants entering your home
• Flooring Protection — Prevents moisture-related flooring failures

Why StegoCrawl?

• Manufactured with 100% prime, virgin polyolefin resins — no recycled content
• Multi-layer extrusion for superior durability and longevity
• Clean white color brightens crawl spaces for easier inspection
• Thoughtfully proportioned roll sizes designed with installer input
• Made in the USA
• Backed by Stego's Life of the Building Warranty

Complete your encapsulation with StegoCrawl® Tape, StegoTack® Tape, Stego® Mastic, and StegoCrawl® Term Bar — all available at RadonDepot.ca.