Glass roofs can be used as a self-generating source for heating households, by capturing solar heat. An swedish invention has developed tile formed glassparts that captures the sun heating and between the roof battens are built special liquid absorber models that harvests sun’s energy and coverts the energy to heat. Aesthetic it gives the roof a nice icy look. The system cuts also the energy costs significantly all year around.
Sources and photos: www.kth.se, inhabitat.com