COMPUTER-IMPLEMENTED METHOD FOR EXTERNALLY ASSESSING A BUILDING'S SUSCEPTIBILITY TO HEAT LOADS

Usage data of an indoor climate control system for a building is obtained. To determine system susceptibility to infiltration, the infiltration parameter per unit effective leak area is determined. To determine system exposure to insolation, an insolation parameter per unit area is determined. To determine thermal isolation of the building, ambient temperature data is obtained for a time period of interest. A fit of the relevant data is performed. A large positive infiltration regression coefficient with minimal error is interpreted as indication of a significant infiltration load. Either a large positive insolation regression coefficient with minimal error for cooling or a large negative insolation regression coefficient with minimal error for heating is interpreted as indications of significant heat load due to insolation. For thermal isolation, a large positive temperature coefficient is interpreted as poor insulation or isolation against temperature-driven thermal loads.