What is daylighting roof?
It is transparent roof, mostly with glass curtain wall, almost the kind of things such as sunlight
Ability to adjust and control the greenhouse to environmental conditions, in cold or hot seasons and regions promote the normal crop growth... Single roof greenhouses usually sits with mud, straw and wood wall building, hut for the north south facing roof light tilt, tilt, lighting materials mainly made of glass or plastic film.
Simply put, the light can shine through the roof to the interior, when the roof is fitted with a window, or the roof is transparent.
Lighting can be divided into direct and indirect lighting lighting, direct lighting lighting refers to the window directly arranged outwards; indirect lighting means lighting window towards the closed corridor (usually a veranda), direct lighting hall, kitchen set, kitchen, room and toilet with some small courtyard lighting, lighting effects as indirect lighting.Daylighting roofing: the structure that designs roofing size and building, make the inside building gets appropriate ray.In architectural design, for class III light climate zone of ordinary glass windows single lighting, the lighting window area according to table 5.0.1 listed in the window area ratio estimation. The window area ratio of building size can be determined according to the standard. Daylighting design, should be carried out lighting factor calculation, lighting calculation points should comply with the provisions.The values of the lighting system can be calculated according to the following formula:Top lighting:Cav=Cd - K - K - Kg Rho TauThe lighting coefficient in the Cd skylight window, can be taken according to the prescribed standards;K - top lighting total transmission ratio;Interior reflected light increment coefficient of K p - top lighting;Kg high span ratio correction factor.Note: 1.. The direction coefficient of sunny weather (Kf) should be taken into account in the first, second and third types of climatic zones (excluding the areas south of the Tropic of cancer).When the 2. rectangular skylight with a wind screen, should consider the load reduction factor (Kd), its value is 0.6.3. when using flat skylight lighting lighting cover, should consider the reduction coefficient of light off lighting cover wall (Kj).
