(1) Thermal insulation performance - can greatly save the energy used for cooling and heating (2) sound insulation performance (3) sun protection, shading performance (4) climate performance German Romansch awning has the ability to resist wind, rain and snow and sand. Added a protective barrier to the doors and Windows of the building. (5) Anti-theft performance German Romantic awning is also a beautiful protective device, completely closed rolling window can prevent glass Windows from being damaged by bricks, balls, but also prevent thieves from invading. In terms of anti-theft, the understanding of aluminum alloy rolling window is that it can prevent the intrusion of thieves to a certain extent. (6) Blocking the line of sight Closed rolling Windows can replace curtains to block the line of sight from outside. (7) Mosquito prevention Closing the curtain can prevent mosquitoes from climbing in.