What can poor roof ventilation lead to in asphalt shingles?

Poor roof ventilation can significantly impact asphalt shingles by causing premature failure. Effective roof ventilation is essential for regulating temperature and moisture levels within the attic space. When airflow is restricted or inadequate, heat and moisture can accumulate. This excess heat can lead to softening and distortion of the shingles, reducing their lifespan.

Moreover, moisture that gets trapped can promote the growth of mold, mildew, and can even lead to rotting of underlying structures. This combination of factors ultimately leads to the shingles degrading faster than they would under proper ventilation conditions. Therefore, maintaining optimal roof ventilation is crucial to prolonging the life of asphalt shingles and preventing costly repairs or replacements.