Analysis Of The Advantages And Applications Of Reinforced Fiberglass Roofing Mat

The production process is basically the same as that of wet-laid thin roofing felt, except for an additional step of laying fiberglass reinforcing yarns into the felt surface. The simplified process involves first mixing alkali-free 6mm chopped fiberglass with diluted water to create a low-concentration, uniform slurry. Dispersants and defoamers are added to prevent uneven fiber dispersion and sedimentation. Simultaneously, the longitudinal fiberglass reinforcing yarns are adjusted. The slurry is then fed into a slanted mesh forming machine to form a wet fiberglass felt. The fiberglass reinforcing yarns are laid longitudinally at uniform intervals and embedded within the wet felt. Vacuum dehydration is then used to initially form the fiberglass felt blank. This wet felt is then pressed to increase its wet strength, impregnated with a matching adhesive, and excess adhesive is removed under negative pressure to control the standard adhesive content. Finally, the process involves segmented hot air drying and curing, fusing the fiberglass, reinforcing yarn, and adhesive together. After air cooling, the weight and tensile strength are directly measured online. The product is then trimmed, slit, and wound under constant tension before being packaged into rolls. White water and adhesive residue generated during production can be filtered and recycled.

The reinforced alkali-free fiberglass roofing felt primarily enhances tensile strength through the longitudinal addition of fiberglass reinforcing yarn, resulting in superior mechanical properties. The longitudinal tensile strength of 50g reinforced felt exceeds 180N/5cm, significantly higher than thinner felt of the same weight. The felt surface is smooth and wrinkle-free, with uniform and stable weight, uniform pore size, and rapid asphalt penetration. It exhibits excellent compatibility with SBS and APP modified asphalt. It possesses superior physical and chemical properties, with a moisture content ≤1% and a combustible content typically between 18% and 25%. It is resistant to high and low temperatures, not flowing at 80℃ and not easily cracking at -20℃, and is resistant to shrinkage and warping with long-term use. The product is corrosion-resistant, acid and alkali-resistant, and suitable for long-term outdoor roofing applications. Reinforced roofing felt is less prone to breakage during production, significantly reducing product scrap rates and extending the lifespan of the roofing waterproofing membrane.

Fiberglass reinforced felt has a wide range of applications. In building construction, it is mainly used in SBS and APP modified bitumen waterproofing membranes, villa asphalt shingles, residential roofs, and basement slabs. In municipal engineering, it is primarily used in the construction of waterproofing layers for tunnels, pipe corridors, and bridges. In the chemical corrosion protection industry, it is mainly used for the outer anti-corrosion wrapping of chemical and heating pipelines and for reinforcing the lining of sewage tanks. In electronics, slit reinforced felt can be used to wrap heating tape for insulation and can also be used for wrapping special pipes to achieve effective insulation coefficients. The product is also available for export and is suitable for waterproof building material production and various long-term outdoor weather-resistant waterproofing projects.