Wealter standard moistureproof vapor barrier membrane is made of high-strength woven fabric and polypropylene non-woven fabric compounded by a special process. The overall color is gray, with one side smooth and the other side rough, which can play a role in isolating water vapor and blocking visible water, forming a continuous protective layer for the insulation layer.

Features:

High strength: The longitudinal and transverse tensile strength, as well as the tearing strength of the nail bar, far exceed that of conventional polyethylene membrane, which can well cope with pulling, foreign object puncture, and scratching during use, making the water vapor protection layer more durable and safe.

Low water vapor permeability: It has excellent water vapor insulation performance, with a water vapor permeability of ≤ 3g/㎡·24h (tested according to GB17146), which can greatly reduce the water vapor that enters into the insulation layer under the effect of temperature difference.

Impermeability: It has certain waterproof performance, with an impermeability of ≥2000mm, and a 2-hour impermeability (tested according to GB/T328.10-2007), which can improve the waterproof function of the whole enclosure structure system.

Aging resistance: The raw material ratio and selection process have been specially designed to improve the aging resistance, which can well adapt to the application scenarios such as metal roofs with large temperature changes.

Widely used in metal roofs, indoor floors and other parts that require water vapor management, it blocks the infiltration of water vapor from the high temperature side to the low temperature side, protects the insulation layer and the enclosure structure from water vapor and condensation, and improves building energy-saving efficiency and lifespan.