In terms of energy cost balance, the new skylight dome or new arcade rooflight with ESSMANN AeroTech achieves a much better U value than conventional materials thanks to its low proportion of solid matter and its fine-pore structure. In conjunction with the extremely high degree of transparency, the low thermal conductivity of λ = 0.019W/mK enables better use to be made of the roof and façade for daylight illumination, while the heat loss is minimised.
