Overview of air infiltration research in Japan.

Recent statistics1 show that the annual primary energy consumption per person in Japan is 31.0 Gcals (129.8 GJ). Almost 25% of this energy demand is divided equally among the commercial and residential sectors, with secondary energy usage per dwelling amounting to 8.3 Gcals (34.8 GJ). This value is aquarter of that of the United States and one half of that of European developed countries.

All about insulation.

            

Effectiveness of air sealing techniques.

            

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