Fiberglass roofing tissue is mainly used as excellent substrates for SBS and APP waterproofing membrane. The longitudinal strength and tear resistance be improved further by incorporating reinforcements into the tissue across its whole width. Main Features: 1, Fiber uniformly dispersed, flat is good 2, High tear strength 3, Dimensional stability, asphalt impregnated fast 4, Strong anti-embrittlement, aging, weathering 5, Excellent anti-leakage. 50g/m2.