Foreword:

Preliminary knowledge

You have heard of an insulation glass, have not you.
It's a glass aiming energy conservation as well as comfortable living atmosphere.
Carbon dioxide problem is widely discussed about its influence to the environment of the earth.

Glass is tender to the earth, so it is gentle to living environment of human beings.

Insulation glass has a structure as shown in the photograph on the left. Dried air is sealed in between the two sheets of glasses and filled air acts as an insulation between outside and inside of a room.

What sort of features do you want for the glasses to be used in your house?

Main