Innovation in terms of economy and comfort with tubular skylights in roofing: it is possible!
‘’To combine business with pleasure’’ here is in a few words the result of the thought that began around the construction of the premises of the company BTP Lautier in Moussac, located in France in the Gard. A long corridor runs through the building from one side to the other, leaving most of the offices open. This space does not have windows to the outside, and the comings and goings of the occupants are of course almost daily. The challenge was therefore simple: to naturally illuminate this crossing in order to minimize the use of artificial lighting, and also to provide the staff with an important and obvious comfort; natural lighting. Remind that it improves the working conditions beyond the vision and that today in a reflection about choices, its is required. This fact has led the building actors to an intelligent option in natural lighting: the tubular skylight “Lightube”. Seven Ø 53 cm units of the Office range were installed in a sealed roof covering the entire corridor. 98% of the external light is transmitted via a collecting zone (the outer cover). It passes through a transmission zone consisting of a sheet metal upstand and an aluminum tube reflecting silver treatment on the entire duct, including on the elbows. The Office diffuser is integrated into the false ceiling. Between 8 am and 6 pm, this installation allows an average annual outdoor lighting of 3360 lumens at the exit of the duct, which is equivalent to 5 lit bulbs of 60 watts in a building located in the south of France (CSTB tests / CIE method 173: 2012 Tubular daylight guidance systems). In conclusion, this simple installation principle generates economy, comfort, but also purified aesthetic. Here is the result of a great advance in the development of roofing products.
■ Supply of tubular skylights: Bluetek / Luynes (dept 37 / France)
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