BASESIMP: a residential-foundation heat-loss algorithm for incorporating into whole-building energy-analysis programs

Heat losses from foundations are poorly considered in many whole-building energy programs which are used to model houses. This despite the fact that foundations contribute significantly to residential heating requirements. A regression-based algorithm known as BASESIMP has been developed to improve the state of foundation heat-loss modelling in whole-building energy programs. The algorithm, developed from 33 000 parametric finite-element-based simulations, covers a broad range of foundation configurations, has minimal processing requirements, and is extensible. The algorithm, which has been extensively tested and validated against the Mitalas method, has been incorporated into the HOT2000 program and is available for use in other applications.