E - Fixed Constructions – 04 – B
Patent
E - Fixed Constructions
04
B
E04B 1/78 (2006.01) A01G 9/14 (2006.01) E04B 1/76 (2006.01)
Patent
CA 2232388
A saving of energy has been a challenge for the inventors, constructors, etc, and it will be in the future. So, the greenhouses builders have developed many different things to save energy. For example, there are many greenhouse covering materials: glass, acrylic, polycarbonate, fibreglass, polyethylene, etc. The target has been to obtain better insulating material, i.e, to obtain as less as possible heat transfer coefficient. It is well known that the air has the least heat transfer coefficient (.lambda.=0,023 W/mK at 0°C). I used this quality in my invention, i.e. I used the long air cushions(bags), joined lengthwisely making a whole, like supplement winter insulator of greenhouses roofs and walls. The bags are installed on the interior side of the roof and walls, which keep them from the ultraviolet rays. Also, I used the transparent plastic bags because of a good light transmission coefficient.
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