PU edge-sealing rockwool sandwich panel Features: 1. The polyurethane double-sided sealing rock wool sandwich panel roof panels are connected by hidden nails, and the panels are closely overlapped to ensure an overall beautiful effect. 2. Unique waterproof gutter design effectively prevents rainwater leakage. 3. The ultra-low thermal conductivity allows the building to easily meet thermal insulation requirements and avoid cold bridges. 4. The superior energy-saving and thermal insulation properties of polyurethane, coupled with the utilization of solar clean energy, create a pure green and environmentally friendly roof. Specification and characteristics 1.The surface effects that can be processed for this board type include water ripple, flat, embossed, square wave, punched, and orange peel, V.8 (for selection). 2.Effective width: 440mm-1000mm (hidden screw connection or exposed nail connection). 3.Production thickness: 40mm, 50mm, 60mm, 75mm, 80mm, 90mm, 100mm, 120mm, 150mm, 200mm 4.The use of fireproof polyurethane side sealing technology improves the air tightness and water tightness of the overlapping (plug-in) joints and effectively prevents the occurrence of cold bridges. At the same time, it overcomes the phenomenon of peeling off of the steel plate and the core material at the overlap during the transportation and installation.