What happens to volatiles in asphalt shingles over time?

Over time, the volatiles present in asphalt shingles dissipate due to a variety of environmental factors such as exposure to sunlight, heat, and oxygen. These volatiles are essential for maintaining the flexibility and durability of the shingles when they are new. As the shingles age, the ongoing evaporation of these volatiles causes the material to lose its pliability and can lead to brittleness.

The dissipation process usually results in changes in the texture and appearance of the shingles, often making them more prone to cracking and other forms of deterioration. This is a natural aging process for asphalt shingles, which underscores the importance of regular inspections to identify potential issues before they lead to more significant roofing problems. By understanding this, homeowners can better anticipate maintenance needs and ensure their roofs remain in good condition throughout their lifespan.