Glass roof tiles let a little sunshine in to cut heating bills
Swedish company, Soltech Energy, recently received the gold medal for this year’s hottest new material at the
Nordbygg 2010 trade fair in Stockholm, Sweden. The award was fitting because it was for the company’s home heating
system that features roof tiles made out of glass. The tiles, which are made from ordinary glass, weigh about the same
as the clay roof tiles they replace but allow the sun to heat air that is then used to heat the house and cut energy bills.
Thankfully, although the tiles themselves are transparent, they are backed by a special black absorption fabric
so sticky beaks won’t be able to sit on the roof and watch what’s going on inside. This fabric absorbs the sun’s rays, which heats the air underneath, with the air formed into columns by beams within the roof to ensure it is heated sufficiently.
The most common way to connect the system to a house’s existing heating system would be to a water based heating
system via an accumulation tank but the system is also designed to be integrated with both air and water based systems,
such as a ground source heat pump, air heat pump, pellet boiler or electric boiler â€" the only
requirement is some form of central heating system.
This setup allows the system to heat the house during winter and transfer the heat absorbed in
summer to a ground heating system through a heat convector and a fluid based system to help achieve a cooling effect.
Depending on factors such as climate, roof angle and house direction, the system should generate around
If your roof isn’t suited to tiles, Soltech Energy also offers glass wall panels that can be tailored to
individual houses and benefit from the lower angle of the incoming rays of sunlight during the winter.
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