Weifang Luyang SBS waterproof roll is manufactured within our 10,000 ㎡ factory by six automated production lines, supplying polyester‑reinforced grades with PE‑film, fine‑sand and mineral‑granule surface variants. Every finished roll completes lab testing for low‑temperature flexibility, heat stability and tear‑resistance. Our product holds ISO and CE certification and supports custom 3‑5 mm thickness specifications. We deliver sample assessment, torch‑laying guidance and global shipment for more than 50,000 worldwide construction‑industry cooperative clients.