Product Introduction

The Class A-faced glass fiber vapor barrier is a high-performance material designed specifically for moisture protection in building insulation systems. With its Class A fire-resistant properties and exceptional vapor-barrier capabilities, it has become a critical complementary product in the field of building energy efficiency.

Its core features and applications can be summarized as follows: In terms of material, it uses fiberglass fabric as the base substrate, combined with a specially formulated functional coating. The tightly interwoven fibers of the substrate provide excellent tear and tensile resistance, while the coating ensures superior vapor-barrier performance. The product achieves an A-grade non-combustibility rating, fully meeting rigorous fire safety standards for various types of buildings—particularly well-suited for public structures and industrial facilities where stringent fire safety requirements are critical. In terms of performance, it boasts an exceptionally low water vapor transmission rate, effectively preventing indoor moisture from seeping into the insulation layer. This safeguards the insulation materials from becoming damp, clumped, or losing their thermal efficiency, thereby maintaining the long-term energy-saving effectiveness of the insulation system. Additionally, the material exhibits good weather resistance and corrosion resistance, making it adaptable to diverse environmental conditions. In application scenarios, it is primarily used in building exterior walls, roofs, and floors as part of thermal insulation systems—typically functioning as a vapor barrier paired with insulation materials such as rock wool or glass wool. It’s also ideal for insulation and moisture-proofing projects involving air conditioning ducts and hot/cold pipelines, providing a reliable vapor barrier for various architectural structures and equipment, ultimately extending the service life of insulation systems.