Asphalt shingles are one of the most common roofing materials around. They’re affordable, easy to install, and look great on almost any home. But even strong shingles can wear down over time, especially when the sun is always shining on them. That’s why understanding how UV rays affect roofing in Hartland is so important for homeowners who want to keep their roofs in good shape for the long haul.
One of the biggest causes of roof damage? UV rays from the sun. You can’t see them, but over the years, they can really do a number on your roof. Let’s take a look at what UV rays do to asphalt shingles, what to watch for, and how to help protect your roof.
What Are UV Rays?
UV stands for “ultraviolet.” UV rays are a kind of invisible light that comes from the sun. Even on a cloudy day, your roof gets hit with UV rays. Over time, these rays break down the materials in your shingles and cause them to age faster.
What Happens to Shingles When UV Rays Hit?
UV rays slowly wear out the parts of your shingles that keep them strong and waterproof. Here’s how that looks over time:
1. Drying Out and Cracking
Shingles have natural oils that keep them flexible. UV rays dry those oils out. When that happens, shingles can get hard and brittle. Brittle shingles are more likely to crack, curl, or even break off in a storm.
2. Granule Loss
Shingles are covered with little granules that protect them from the sun. UV rays can loosen those granules. Once the granules fall off, the bare shingle underneath is more exposed and more likely to wear out.
3. Color Fading
Have you ever noticed a roof that looks a little dull or bleached? That’s probably from UV rays. Sunlight can fade the color of your shingles, which makes the roof look older and uneven.
4. Faster Aging
All these changes mean your roof may not last as long. A roof that should last 20 to 25 years might need to be replaced much sooner if it’s in a sunny spot with no protection.
How Do You Know If Your Roof Has UV Damage?
You don’t need to climb up there to notice signs of UV damage. Here are a few things to look for:
- Curled or cracked shingles
- Bald spots where granules are missing
- Faded or uneven color
- Shingle edges that lift or fray
- Higher indoor temps (from poor insulation)
If you see any of these, it’s a good idea to call a professional for a roof check.
How to Protect Your Roof from UV Damage
You can’t stop the sun, but you can take steps to protect your roof from UV wear.
Choose UV-Resistant Shingles
Some shingles are made with special granules that reflect UV rays. These can slow down damage and help your roof last longer.
Keep Up With Inspections
Have a roofer check your roof every year, especially after hot summers. Early signs of damage are easier (and cheaper) to fix.
Clean and Maintain Your Roof
Leaves, branches, and dirt can trap heat on your roof. Keeping it clean helps it stay cooler and reduces sun damage.
Improve Attic Ventilation
When your attic gets too hot, it can heat up your shingles from below. Better airflow keeps your attic cooler and helps protect your roof.
A Little Prevention Goes a Long Way
UV rays may be invisible, but their effects are not. Over time, they can weaken your roof, cause leaks, and even lead to expensive repairs. But with the right shingles, smart maintenance, and regular checkups, you can keep your roof strong and sun-safe for years.
