Weifang Luyang roof water proof sheet is manufactured inside our 10,000 ㎡ factory with six advanced production lines, supplying modified‑bitumen and polymer‑type roll sheets with multiple thickness and surface‑finish selections. Every finished roll completes lab testing for tensile‑strength, low‑temperature flexibility, UV‑aging and lap‑seam‑tightness indicators. Our product holds ISO and CE certification and supports custom‑roll‑size specifications. We deliver sample assessment, rooftop laying guidance and global shipment for more than 50,000 worldwide construction‑industry cooperative clients.