Red Seal Roofer Practice Exam 2025 – Complete Test Preparation

Missing or damaged shingles are indeed common signs of roof deterioration, as they directly impact the roof's ability to protect a structure from water infiltration and other environmental elements. When shingles are missing or have suffered damage, it can lead to leaks and further structural issues over time. This sign is easily observable from both the ground level and up close, making it a primary indicator for homeowners and roofing professionals to inspect.

While the presence of moss and algae can suggest moisture-holding conditions that may lead to further roof problems, they are not as definitive of deterioration as missing or damaged shingles. Strong odors in the attic might indicate other issues, such as mold or insufficient ventilation, but they do not specifically relate to the physical condition of the roofing material itself. Excessive granule loss from shingles is also an important sign of roofing issues, often indicating that the shingles are nearing the end of their lifespan, but it is less immediately visible than observing missing or damaged shingles. Thus, assessing the integrity of shingles is often the first step in identifying and addressing roof deterioration.