The Power of UV Rays on Roofing Materials
Prolonged exposure to the sun’s UV rays can cause severe damage to roofing materials over time. Asphalt shingles—the most common roofing material—can dry out, become brittle, and lose granules. This deterioration shortens the lifespan of your roof and increases the risk of leaks.
If your shingles are curling at the edges or showing signs of discoloration, it’s time to take action. Failing to address sun damage now could result in costly roof repairs and replacement down the road.
Heat Expansion & Contraction
Minnesota’s summer days can vary widely in temperature. That constant cycle of heating and cooling causes roofing materials to expand and contract. Over time, this movement weakens flashing, loosens nails, and cracks sealants, allowing water to seep in when you least expect it.
Attic Ventilation
Your attic plays a critical role in the longevity of your roof. Poor attic ventilation can trap heat, raising the temperature of your roofing system from underneath. This not only accelerates material breakdown but also causes energy bills to spike as your AC works overtime.
If your upstairs rooms feel like saunas or your attic smells musty, it’s time to check your ventilation.
How to Protect Your Roof This Summer
Here are a few ways to protect your roof from sun-related damage:
- Schedule a free roof inspection with BD Exteriors
- Remove overhanging branches to reduce heat absorption
- Upgrade to cool roof materials that reflect sunlight
- Ensure your attic has balanced intake and exhaust ventilation
