How to Choose Suitable Windows & Doors for Southern and Northern Regions?

For aluminum alloy doors and windows in the following cases, it is recommended to use laminated glass: ①. Glass for floor spring doors; ②. The area of a single piece of glass for windows is greater than 1.5m², and the area of a single piece of glass for framed doors is greater than 0.5 m²; ③. Floor-to-ceiling windows whose glass bottom edge is less than 500mm away from the final finished surface; ④. Glass for frameless doors and windows; ⑤. Entrance and exit doors of public buildings; ⑥. Doors of kindergartens or other children's activity places; ⑦. Sloped windows and skylights; ⑧. Outward opening windows of buildings of 7 floors and above.