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New-model fireproof rockwool/glasswool roof sandwich panel
The application of exclusive fireproof PIR side sealing technology increases the air-tightness and water tightness in lap-joints, thus preventing the cold bridge from happening, and at the same time, the separation of steel sheets from core materials is avoided while transportation and installation.
Polyurethane (PU) energy-saving roof sandwich panel
Screw concealed, Duowei polyurethane roof panels have tight overlapping; The unique capillary groove design effectively avoids rainwater seepage and cold bridge phenomenon; The heat preservation effects of buildings are ensured and the building costs of customers are significantly decreased as well. The minimum roof pitch may be 3%.

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