If a roof has asphalt shingles missing, what should an inspector check?

When asphalt shingles are missing from a roof, it is crucial for an inspector to check the fastening method used. This is significant because the method of fastening directly affects the shingles' ability to withstand weather elements such as wind and snow. Shingles that are not properly secured can lead to further damage, not only to the roof itself but also to the underlying structure and interiors of the home.

If the fastening method is inadequate, it can lead to more shingles being dislodged over time, increasing the likelihood of leaks and other issues that may arise due to moisture penetration. Therefore, ensuring the proper fastening is crucial for the longevity and effectiveness of the roofing material.

While factors such as shingle color, ventilation, and shingle brand are important considerations in roofing inspections, they do not directly address the immediate concern of missing shingles and the potential for further damage due to improper installation or fastening methods.