There are three common types of closed terrace top:
the first one: the color steel plate is used to cover the terrace. Generally, the color steel plate is 15cm thick. The advantage is that it is economical and affordable, and the heat preservation and heat insulation effects are good.
The second type: tempered glass use double-layer hollow tempered glass above 5cm or laminated glass, it can also be 12cm single-layer tempered glass.
The third type: composite top or Davco tiles roof, with multi-layer structure. Tegola. Waterproof layer, insulation layer, block board and sauna board together form the top. This is the best. The sealed terrace can be used as an independent room.
Of course, besides the top, there are also surrounding windows on the closed Terrace. You can use the car-grade doors and windows of Rixiang. Soundproof window it is closed as a window around the terrace and has good sound insulation performance.