What happens to warranty length as the weight of shingles increases?

The warranty length associated with shingles does typically increase as the weight of the shingles increases. Heavier shingles are often indicative of higher quality materials and construction methods, which can contribute to better durability and longer lifespan. Manufacturers tend to provide extended warranties on heavier shingles because they are seen as more resistant to weathering, damage, and overall wear and tear compared to lighter options.

Heavier shingles are typically made with more asphalt and can include features such as reinforced backing, which adds to their resilience. Therefore, the expectation is that these shingles will perform better over time, allowing manufacturers to justify longer warranty periods.

While it is important to note that warranty length can also be influenced by specific brand policies and their manufacturing standards, the general trend is that increased weight correlates with increased warranty length due to the perceived enhancement in performance and durability.