What does the presence of asphalt shingles found on the ground indicate?

The presence of asphalt shingles found on the ground is indicative of a probable failure type on the roof. When shingles are seen on the ground, it suggests that they have either been blown off due to strong winds, or they may have been improperly installed, leading them to detach from the roof. This scenario raises concerns about the integrity of the roof system, as missing shingles can expose the underlying material to the elements, increasing the risk of water intrusion and other related problems.

In contrast, normal weathering would not typically result in shingles ending up on the ground; instead, it refers to the gradual deterioration of roofing materials over time that occurs while they remain securely attached. The age of the roof might be a consideration in assessing its condition, but the presence of shingles on the ground is more indicative of an immediate issue rather than simply reflecting its lifespan. Lastly, finding shingles on the ground is not a sign of a successful installation; rather, it suggests that there are significant problems with how the roof has been put together or its resilience against environmental factors.