LIXIL Corporation collaborated with Associate Professor Hiroshi Fujita of Kindai University to verify the effect of window insulation renovation on medical cost reductions and heating and cooling cost reductions. Published a paper on ``Research on the thermal environment in the home and the health of residents.''
Promoting energy conservation by improving the performance of homes, such as improving the insulation performance of openings such as windows, will not only lead to reductions in CO2 emissions and utility costs, but also reduce cardiovascular diseases such as heat shock (cerebral infarction, subarachnoid hemorrhage, etc.). It also has an impact on health, such as reducing the risk of developing cardiomyopathy (cardiomyopathy, etc.) and alleviating allergic symptoms.However, approximately 90% of Japanese homes do not meet energy-saving standards, and it is estimated that approximately 19,000 people die each year while taking a bath due to heat shock, which is approximately four times the number of deaths from traffic accidents.
LIXIL and Kindai University used the results of a survey of approximately 2 people on health changes before and after moving to identify 4 diseases for which indoor temperature is a factor (heart disease, cerebrovascular disease, hypertension, diabetes, bronchial disease, etc.). We investigated the relationship between indoor temperature and medical costs for asthma, atopic dermatitis, pneumonia, arthritis, allergic rhinitis, and allergic conjunctivitis, and estimated medical costs from the indoor temperature.
As a result, the heating and cooling cost reduction effect of window repair was approximately 73 yen/household/30 years, and the medical cost reduction effect was approximately 25 yen/household/30 years, for a total of 98 yen/household/30 years. It was effective.Up until now, the economic effects of window renovation have been expressed only in terms of heating and cooling costs, but when medical costs are included, the economic effects are expected to be approximately 1.34 times greater.
Based on the above results, it is expected that by showing the new effect of reducing medical costs, window insulation renovation will be promoted and progress will be made in energy saving and healthy living.
reference:[Kinki University] Published a research paper on indoor thermal environment and residents' health in collaboration with Kindai University Verified the effect of window insulation renovation on medical cost reduction and heating and cooling cost reduction