Heat damage starts where you least expect it.
Get More Info5 Signs the Summer Heat Is Damaging Your Roof (And What to Do About It)
When most homeowners think of roof damage, they picture heavy rain, snow, or falling branches — but did you know that summer heat and UV exposure can silently destroy your roof?
In New Jersey, the summer sun can be just as brutal on your roofing system as any storm. At LGM Contractors, we help homeowners recognize the signs of heat damage early and protect their homes before costly repairs are needed.
Here are the top 5 signs your roof may be suffering from summer heat damage — and what to do about it.
1. Curling or Buckling Shingles
Shingles are designed to lie flat. But when exposed to extreme heat, the asphalt softens, and shingles can begin to curl, blister, or buckle. This creates weak spots where water can seep in and cause leaks.
What to do:
If you notice distorted shingles — especially on the sunny side of your home — contact a roofer for an inspection. Early repairs can prevent water intrusion.
2. Granule Loss
Asphalt shingles are coated with granules that protect them from the sun’s rays. Over time, UV radiation breaks down the adhesive holding those granules in place, causing them to wash off into gutters.
What to do:
Check your gutters for dark, sand-like material. Excessive granule loss often means the shingles are losing their ability to protect your home and may need replacing.
3. Cracked or Dry Shingles
New Jersey’s summer temperatures often fluctuate between intense heat and humidity. These conditions dry out roofing materials, especially older shingles, causing them to crack and deteriorate.
What to do:
Schedule a professional inspection if your shingles look brittle, dry, or cracked. Cracks allow moisture to seep in and damage the roof decking.
4. Ventilation Issues
Without proper attic ventilation, heat gets trapped under your roof. This can accelerate shingle aging, increase indoor temperatures, and raise energy bills.
What to do:
Have your roofer assess attic airflow and add vents or ridge caps if needed. Good ventilation helps your roof last longer — and your AC work less.
5. Sagging or Soft Spots
Prolonged exposure to heat and UV rays can weaken roofing materials and decking. If you walk on the roof and feel soft or spongy areas, this could indicate moisture buildup or rot underneath.
What to do:
Don’t ignore this sign. Call a licensed roofer right away to avoid major structural issues.
Key Takeaways:
Summer heat and UV rays can cause serious wear to shingles, especially in New Jersey’s hot and humid climate.
Common signs of heat damage include curling shingles, granule loss, cracks, poor attic ventilation, and sagging roof areas.
UV exposure and trapped attic heat can shorten your roof’s lifespan and raise energy bills.
Proactive roof inspections can catch damage early, helping you avoid leaks and costly repairs.
NJ homeowners should schedule a summer roof inspection to ensure their roof is ready for storms, heat, and seasonal stress.