DEVELOPMENTS AND EXAMPLES RELATED TO PRACTICAL FIELD MEASUREMENTS OF THE HEAT LOSS COEFFICIENTS OF DETACHED HOUSES

Thermal insulations of detached houses are much more important in the 21st century, in which the world focuses are paid on the global warming issues. Performances of thermal insulations are evaluated using the Q-value (heat loss coefficients) on desks. However actual performances of thermal insulations are not realized only by insulation thickness, but are also affected by the air tightness of the building envelopes and by the insulation methods. This paper describes a practical field measurement method of the Q-value, developed by the authors, and shows example data obtained in existent detached houses using the developed measurement method.