1. Lighting is good. The experimental test, oblique lighting effect roof windows windows higher than 10%. Time of day can turn on the lights one hour later. At the same time enjoy the night astrology, to add interest.

2. Insulation. Sloping roofs, skylights heat transfer coefficient used in insulating glass 2.5-4 times higher than normal glass. Hot season was done in Guangdong day trial, the same environmental conditions, the general window of the room one day to open 10 air conditioners, and in the interior with insulating glass only.

3. Insulation against noise. Sloping roofs, hollow glass skylights can Dangqu 30 dB above the noise.

4. Sloping roofs, skylights in the rotation by way of open, easy to maneuver into the indoor air, even though the cold winter season will not blow on one's face, but gently so that the indoor air becomes clean and fresh; easy sunroof switch and the glass clean inside and outside.

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