Sunshade, thermal insulation, energy saving The environmentally friendly and heat insulation material filled in the middle of each section bar of roller shutter can effectively maintain the indoor temperature and save substantial energy. After the Physics Institute of Chinese Architecture Academy's testing and computing, the energy it saves is about:35%-45%. Sound insulation noise reduction Roller shutter type adopts high quality aluminum alloy, and roll-formed by Europe's most advanced equipment. With environmentally friendly foam material filled in the middle place, it has good noise reduction effect. Noise performance： Noise level GB/T16730; Rw=20dB Security High strength profiles have some security role, can be installed anti-up pushing device, not easy to be lifted from outside.
