Rooflights for flat roofs
alwitra daylight systems
Efficient thermal insulation and excellent lighting of the room at the same time: the alwitra rooflights provide optimum thermal protection. At the same time, outstanding lighting of the room is achieved through efficient light dispersion and low light loss. All alwitra rooflights are equipped with a burglary-resistant screw system protecting against burglary and providing increased security.
The double-shell version (U value: 2.68 [W/m²K]) consists of two domed extruded polymethyl methacrylate shells (PMMA). Acrylic glass is a highly transparent, impact-proof and UV resistant plastic. The standard version consists of two opal shells; a version with two transparent shells is available on request.
The triple-shell version (U value: 1.70 [W/m²K]) consists of three domed extruded polymethyl methacrylate shells (PMMA). The standard version consists of two opal shells and a transparent middle shell; a version with three transparent shells is available on request.
The multi-shell rooflight 2S WD (U value: 1.23 [W/m²K]) consists of a transparent domed outer acrylic glass shell (PMMA), a 10 mm domed transparent SPC sheet and an opal inner acrylic glass shell. Due to their outstanding thermal insulation characteristics, these rooflights are the ideal solution for buildings with increased thermal protection requirements.
Overview of important downloads
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