REINFORCING FABRIC FOR ROOFING AND WATERPROOFING MATERIALS Russian patent published in 1998 - IPC

FIELD: manufacture of building materials. SUBSTANCE: fabric is made with thickness 0.7-0.9 thickness of roofing and waterproofing material by interweaving two mutually perpendicular systems of longitudinal and transverse threads with different fiber composition, for example, flax fiber. Volume of cells between threads constitutes 70-75% of fabric volume. Transverse threads constitute 45-55% of total quantity of longitudinal and transverse threads. EFFECT: improved performance characteristics of fabric having maximum allowed material usage. 2 dwg, 1 tbl, 5 ex