Guidelines to Reduce Instances of Thermal Stress

This publication provides guidelines relating to thermal stress considerations for window glass products used in residential and commercial building envelope projects. Its purpose is to give the user specific guidelines and design assistance toward avoiding glass problems that arise from breakage caused by thermal stress conditions. The Technical Bulletin is intended to consider, but not be limited to, conditions known to be important to thermal stress in glass, a knowledge base of reference materials, available industry information, do’s and don’ts guidelines for thermal stress and practical design considerations for the review and analysis of thermal stress.


IGMA is the trade association representing the interests of the Insulating Glass industry not only in North America but worldwide. Our focus is on developing and advancing new technologies in the manufacture of insulating glass units through development of codes and standards, topic industry publications, education, product certification and leading edge research.