Waterproof PU Rock Wool Sandwich Panel for Factory Warehouse Roofing System

Waterproof PU Rock Wool Sandwich Panel for Factory Warehouse Roofing System. 30-Year Warranty Coverage: Comprehensive 30-year warranty for all mechanical and structural defects. Class A Fire Rating: Non-combustible rock wool core ensures maximum fire safety compliance. Customizable Dimensions: Thickness from 50mm to 300mm and length up to 15000mm tailored to needs. Multiple Surface Options: Smooth flat, water ripple, embossed, and mini corrugated styles available. High-Strength Steel Sheets: Outer sheet 0.6-0.8mm and inner sheet 0.4-0.7mm for superior durability. Eco-Friendly Materials: Environmentally certified with ISO 9001 and ROHS compliance.