The National Concrete Masonry Association plans to further investigate computer modeling of masonry walls to identify potential problems related to the
The National Concrete Masonry Association plans to further investigate computer modeling of masonry walls to identify potential problems related to the use of energy modeling programs. The project stems from previous work indicating that at least one commonly used analysis program, Energy-10, does not reflect the expected effects of thermal mass in the building envelope. Because of the reliance on energy modeling for demonstrating single-wythe CM wall energy code compliance, as well as energy performance for LEED-registered projects, this modeling effort commands high industry priority.
NCMA investigators will revisit a recent Portland Cement Association study on concrete buildings, with the goal of isolating masonry wall performance; investigate with the Energy-10 developers how the program treats wall systems’ thermal mass; review DOE-2, the computer engine behind most of the current modeling programs to ensure thermal mass is being properly included; and, weigh possible applications of finite element analysis of heat flow through masonry construction.