A FIELD MEASUREMENT ON CONDENSATION PREVENTION AND PASSIVE COOLING PERFORMANCE OF THE EXTERNAL INSULATED WOODEN HOUSE WITH DOUBLED AIR-FLOW SKIN IN OKINAWA

Abstract

This paper describes results of a field measurement in which the feasibility of the external insulated house with air circulation through under-floor space, and attic connecting to ventilation layer in walls were examined in Okinawa. Absolute humidity in walls and under floor in median is 4.0 g/kg (DA) and lower than outside air. The external insulation and the air circulation make attic air temperature lower than 30℃.