ALORAIR 14 mil Crawl Space Vapor Barrier, 10' x 50' Black/White Sheeting

The 10' x 50' format gives this ALORAIR vapor barrier a defined coverage footprint for crawl space projects. Its 14 mil polyethylene sheeting is designed to help reduce soil moisture vapor migration and protect foundations, insulation, and structural components.

The black-and-white, double-sided film offers vapor resistance on both sides. Black blocks light, while the white surface reflects up to 90% of light, helping create a brighter crawl space environment.

Use it for crawl space encapsulation, moisture control, or weatherproofing. Its smooth surface is easy to clean, and the roll arrives in a sturdy cardboard box designed to minimize creasing during shipping and handling.

Pros

The 14 mil thickness and 10' x 50' roll format make this a substantial sheet for planned crawl space coverage. The polyethylene barrier helps limit moisture vapor moving up from the soil, adding a protective layer around the foundation and nearby building components. That makes it useful for homeowners, builders, and contractors preparing an encapsulation project.

The two-sided design adds practical flexibility during installation: both faces provide vapor resistance, while the black side blocks light and the white side reflects up to 90% of it. Anti-aging additives help the film resist tearing during installation and long-term use. It is also suited to radon mitigation applications, greenhouse gardening, and other protective uses.

Buyer feedback is mixed on thickness, durability, and moisture resistance. Some customers describe the material as thick, while others report sections that seem thinner, durability and moisture resistance also receive mixed comments. This is useful context when comparing a 14 mil roll with other available thicknesses and sizes for a project.

Key takeaways

This roll combines a 14 mil polyethylene barrier with a 10' x 50' format, making it a practical fit for crawl space encapsulation and ground-cover projects planned around those dimensions. The black side helps block light, the white side reflects up to 90%, so the two surfaces serve distinct purposes while both providing vapor resistance.

The product is also described for moisture control, weatherproofing, and radon mitigation applications. For greenhouse gardening or other protective projects, the double-sided film offers another use beyond a crawl space. Choosing a roll by its thickness and dimensions helps match the material to the area and application, rather than selecting a format intended for a different coverage need.

Care & maintenance

The smooth surface is easy to clean, a helpful feature in crawl spaces where dust and soil can collect on ground-cover material. The film is packaged in a sturdy cardboard box to help minimize creasing while it is shipped and handled. During installation, the tear-resistant design and anti-aging additives support use as a durable protective layer.

Before you decide

What size and thickness is this roll? It is 14 mil polyethylene sheeting in a 10' x 50' format, intended for projects such as crawl space encapsulation and ground coverage.

Can either side face up? Both sides provide vapor resistance. The black side blocks light, while the white surface reflects up to 90% of light, so choose the visible face based on the needs of the space.

Is it only for crawl spaces? No. It is also described for moisture control, weatherproofing, radon mitigation, greenhouse gardening, and other protective applications.

Buying verdict

For a crawl space project that calls for a 14 mil barrier in a 10' x 50' roll, ALORAIR brings together moisture-vapor protection, a dual-purpose black-and-white surface, and a smooth finish that is easy to clean. Those features also make it a useful choice for buyers planning compatible ground-cover or greenhouse applications.