Roof Lantern Heat Loss

Heat loss of course incorporating a roof lantern to your extension will result in more heat loss than just a flat roof the same as putting windows in a room does.

Roof lantern heat loss.

I seriously suggest you reconsider and or consult an architect who will advise you on the likely heat losses you will suffer. Loss of heat through warm room air reaching the glass cooling then cool air falling back into the room for you to have to re heat air leakage heat lost through cracks in the frame or from ill fitting glass. Heat loss in the winter historically glazed extensions such as conservatories have gained the reputation of being too hot in the summer and too cold in the winter. Including a roof lantern opens up the room and gives a feeling of space.

This isn t the case with the roof lanterns from sheerwater glass. Modern glazing has seen radical improvements and started to shake this historic view which is also the case with the roof lantern. Without a roof lantern blind you are very likely to experience the following. Convection the draft loop.

The room will be colder more glass means more heat loss. Combined with high performance glazing our aluminium roof lanterns can achieve u values as low as 1 0 w m2k.