Comparison of various roof coating materials through thermal comfort indexes

Abstract

The thermal behaviour of different roof coating materials was studied through the thermal comfort index. For summer condictions the effect of the Globe and Humidity Index (ITGU) and the Radiant Thermal Load (CTR) were used to study the interior of shelters. Fiberglass, aluminum and zinc tiles were more recently introduced in this project. Other tested materials were clay, asbestos, cement and thermal tiles. To evaluate the comfort index the following measurements were performed: maximum and minimum temperatures, wind velocity, relative humidity and "black globe" temperature. The conclusions were: clay tiles continue being the most efficient and fiberglass tiles the least thermal efficient, and other tiles had an intermediate behaviour.