In real life, we can find that roof lighting are widely used in the plant, warehouse and private residential. Light from the window can not meet many buildings due to special needs. Window lighting can only get a small amount of light in factories due to plant area and span, so it need to set lighting belt, or even during the day need to turn on the lights, which will waste resources.
Roof lighting selection has become an important issue. The glass and PC sheet are generally used. Designers will assess and select the material through the appearance of roof lighting, support structure, plate support structure, prices and other factors. 

The advantages of PC sheet, compared to glass.
1、PC sheet has good impact resistance, up to 3kg/m2. The impact strength of PC boards is 250-300 times that of glass.
2、 PC sheet has good light transmission. PC sheet with anti-ultraviolet coating does not produce yellowing, fog, poor light transmission under sun exposure.
3、 PC sheet surface has UV co-extruded layer, which can prevent resin yellowingcaused bysolar ultraviolet light.
4、 The weight of PC sheet is only half of the glass. It is easy for cut-off installation and construction to handle and drill the PC sheet, and is not easy to break.
5、 PC sheet has good sound insulation effect, which is better than same thickness of glass or acrylic. PC sheet insulation than glass increased 3-4DB in the same thickness of the conditions
PC sheet is often used in industrial plants, warehouse roof lighting, sports venues, open-air swimming pool,outdoor stadium roof, lighting corridor, carport, shelter, waiting room and so on.
PC sheet has become an indispensable plate of roof lighting.