| 摘要 |
A skylight with improved thermal insulation includes a light tube which passes through a roof to bring daylight inside a building. The skylight conserves heat energy by providing a transparent, double paned insulation double glazing unit, which is positioned to divide the light tube into an upper tube and a lower tube. Insulation efficiency is maximized by providing the insulation double glazing unit, as well as an insulating foam collar the insulation unit is surrounded by and anchored to, in the same plane as the insulation in the ceiling of the building. The collar has a shape and thickness to match the span of ceiling or roof thermal insulation. |
