Complete the conventional energy resources such as coal and oil, growing environmental pollution, and significant increases in energy prices led to that already in the 70s of last century, in some countries made attempts to implement research and buildings with much less energy intensity.
However, this problem seriously interested only in the late 80’s and 90’s.
Leading countries in this regard are Germany, Sweden, Switzerland, Austria, France. Unfortunately, in US, more stringent criteria for the insulation of buildings are placed quite slowly, and in this respect in our existing rules are the least stringent in Europe.
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