New window's technique

For example use for window's technique in Sweden.
In Sweden, research of solar have been done eager. There are the village called eco-village which means coexisting with environment in Stockholm suburb of Sweden.

All of 16 houses are solar houses, and have a greenhouse and big windows on the south. "Low radiation glass" is used for this window. This is the window which carried out coating of the silver to the whole surface of the glass of two sheets. This is effective in reducing heat loss. It is still expensive. However, in life power Sweden, it is used so that naturally.

Since the climate of Stockholm is near the Arctic Circle, daylight hours are short. Isn't it better to make a window small, if it was under such environment? However, the technology of a window connects environment with outside here. Moreover, it is the symbol of the ecohouse which lives a life rich and carries out it.

Let's see the technology of new glass!