HAAG Certified Reviewer Practice Exam 2026 – Complete Study Guide

The term "thermal cycling" specifically refers to the phenomenon of expansion and contraction of roofing materials in response to changes in temperature. As temperatures fluctuate, materials can heat up and expand during the day, then cool down and contract at night. This continuous cycle can lead to the development of stress and strain within the roofing materials, potentially resulting in wear, tear, and premature failure if not properly understood and managed.

Understanding thermal cycling is critical for roofing evaluations because it helps assess the longevity and durability of roofing systems, ensuring they can withstand the environmental conditions they are subjected to over time. The other options pertain to different aspects of roofing systems, such as coatings, insulation measurement, and load-bearing assessments, which do not specifically address the implications of temperature fluctuations on material integrity.