A Study of Heat Flow Reversal in Masonry Walls Subjected to Diurnal Temperature Swings
Over the last seven years an extensive research program has been underway at the University of Newcastle in conjunction with Think Brick Australia aimed at investigating the thermal performance characteristics of masonry. This is being done at a full-scale level with purpose built test modules and has been extended to include the development of building simulation energy models. This report gives a brief overview of the project and focuses on the reversal of heat flows through masonry and lightweight walling systems observed in the thermal test modules. The difference in behaviour for four wall types (cavity brick, brick veneer, insulated cavity brick and lightweight) are reported in conjunction with the net resultant flux and influence on the internal air temperatures for various times throughout the year.