Nonwoven Patterned Roofing Vapor Barrier-150gsm

Technical Data

Material type: Polypropylene

Fabric construction: Non-woven

Weight: 150gsm or as your requirements

Tickness: 0.5mm or as your requirements

Color: Green or customzied

Logo: Can be customzied

Material and Structure

Constructed using nonwoven technology, it features a unique fibrous matrix structure. The randomly oriented yet interlocked fibers create a stable and uniform layer. This structure provides an optimal balance between strength and flexibility, allowing the barrier to withstand the rigors of installation and the dynamic movements of the roofing system over time. The choice of fibers and manufacturing process ensures consistent performance and reliability.

Moisture Regulation

The primary function of a nonwoven roofing vapor barrier is to control the flow of water vapor. It effectively restricts the passage of warm, moisture - laden air from the interior of the building into the roofing assembly. During colder months, this prevents condensation from forming within the insulation and structural components of the roof, which can lead to mold growth, rot, and reduced insulation efficiency. By blocking the inward migration of water vapor, it helps maintain a dry and stable environment within the roofing structure.

Performance Characteristics

• Vapor Resistance: It offers high vapor resistance, measured by its permeance rating. This rating indicates how well the barrier can impede the movement of water vapor. A low permeance value means the barrier is highly effective at preventing vapor transmission, providing long - term protection against moisture - related damage.

• Tensile Strength: The nonwoven material exhibits good tensile strength, enabling it to resist tearing and stretching during installation and normal use. This strength ensures that the vapor barrier remains intact, maintaining its effectiveness over the lifespan of the roofing system.

• Compatibility: It is designed to be compatible with a variety of roofing materials and insulation types. Whether used with asphalt shingles, metal roofing, or spray - foam insulation, the nonwoven vapor barrier adheres well and works in harmony with other components of the roofing assembly.

• Breathability (in some cases): Some nonwoven roofing vapor barriers are engineered to have a controlled level of breathability. While still preventing the majority of water vapor from entering the roof structure, they allow a small amount of moisture to escape from the insulation layer. This feature helps prevent the build - up of trapped moisture, further enhancing the durability of the roofing system.

Installation and Benefits

Easy to install, the nonwoven roofing vapor barrier can be applied using adhesives, mechanical fasteners, or by simply draping it over the roof deck before the installation of insulation and roofing materials. Its use significantly extends the lifespan of the roof by protecting against moisture - induced deterioration. Additionally, it improves the energy efficiency of the building by maintaining the effectiveness of the insulation, reducing heating and cooling costs, and creating a more comfortable indoor environment.