And What You Can Do About It
Pittsburgh homeowners know all too well how unpredictable and extreme our weather can be—especially in the winter months. From frigid temperatures to sudden warm-ups, the constant freeze-thaw cycle can take a serious toll on your roof. Over time, this cycle can lead to damage that, if left unaddressed, may require significant repairs or even a full roof replacement.
As a trusted Pittsburgh roofer, Malick Brothers Exteriors is here to help you understand how the freeze-thaw cycle affects your home and what you can do to protect your investment.
Understanding the Freeze-Thaw Cycle
In simple terms, the freeze-thaw cycle occurs when water seeps into small cracks or gaps in your roofing system. As temperatures drop below freezing, the water turns to ice and expands—widening those gaps. When the temperature rises again, the ice melts, allowing more water in. This repeated expansion and contraction gradually weakens roofing materials, allowing moisture to penetrate deeper and do more damage.
In Pittsburgh, this cycle can happen multiple times in a single week, making it a leading cause of winter roof damage.
Top 5 Ways Freeze-Thaw Cycles Damage Pittsburgh Roofs
1. Shingle Cracking and Curling
As ice forms under shingles, it lifts and stresses them. Over time, this leads to curling, cracking, or complete loss of shingles—compromising your roof’s ability to shed water and protect your home.
2. Leaks and Water Intrusion
Once roofing materials crack or shift, water can seep into your attic, insulation, or walls. This leads to rot, mold growth, and serious structural damage that calls for professional roof repair in Pittsburgh.
3. Flashing Failure
Flashing—metal pieces that seal roof joints and vents—is especially vulnerable to freeze-thaw stress. Even a small gap around flashing can lead to major water intrusion over time.
4. Ice Dams
When snow melts and refreezes at your roof’s edge, it can form an ice dam. This buildup blocks proper drainage, allowing water to pool and seep underneath shingles—one of the fastest ways to destroy a roofing system.
5. Accelerated Roof Aging
Even if your roof is newer, repeated freeze-thaw stress shortens its lifespan. Small issues build up quickly, turning minor wear into major damage that may require a roof replacement in Pittsburgh sooner than expected.
How to Protect Your Roof From Freeze-Thaw Damage
Fortunately, there are proactive steps you can take to guard your roof against winter damage:
1. Schedule Regular Roof Inspections
A professional inspection—especially before and after winter—can catch small issues before they turn into big problems. At Malick Brothers Exteriors, we know what to look for and how to fix it fast.
2. Keep Gutters Clean
Clogged gutters prevent proper drainage and lead to ice dams. Make it a habit to clear gutters of leaves and debris in late fall and early winter.
3. Improve Attic Insulation and Ventilation
A properly insulated and ventilated attic helps maintain consistent roof temperatures, reducing snow melt and preventing ice dams from forming.
4. Repair Damaged Flashing and Shingles Promptly
If you notice lifted shingles, exposed nails, or rusted flashing, don’t wait. Timely roof repair in Pittsburgh is far more affordable than replacing rotted decking or interior ceilings later on.
5. Consider an Ice & Water Shield Underlayment
If you’re due for a roof replacement in Pittsburgh, ask your contractor about installing an ice & water shield underlayment. This waterproof membrane offers an extra layer of protection in vulnerable areas like eaves, valleys, and around roof penetrations.
Work With a Pittsburgh Roofer You Can Trust
When winter weather threatens your home, having a reliable roofing partner makes all the difference. At Malick Brothers Exteriors, we’ve built a reputation for honest service and exceptional craftsmanship. As a family-owned business, we understand the importance of protecting your home through every season.
Whether you need a quick repair or a complete roof replacement, our team is ready to help. We’re proud to be the Pittsburgh roofer homeowners trust for quality, communication, and long-lasting results.
Don’t Wait for Spring to Fix Winter Damage
Pittsburgh’s winters are tough—but your roof doesn’t have to suffer for it. Schedule a free inspection today and let Malick Brothers help you stay ahead of freeze-thaw damage with expert roof repair in Pittsburgh.
📞 Call us today or 📩 Request a Quote Online to protect your home this winter.