Ice dams in Bergen County are one of the most common causes of winter roof damage in New Jersey — and most homeowners don’t spot them until it’s too late.
If you live in Bergen County, NJ — whether it’s Alpine, Franklin Lakes, Upper Saddle River, Tenafly, or any of our nearby communities — you know winter can be beautiful but also harsh on your roof. One of the most common cold-weather problems homeowners face is an ice dam. Left unchecked, it can lead to costly leaks, ceiling stains, and long-term roof damage.

What is an Ice Dam?
Homeowners dealing with ice dams in Bergen County often don’t realize the damage until spring — when leaks appear inside the home.
An ice dam is a thick ridge of ice that forms along the edge of your roof. It happens when heat escapes from your home, melts the snow on your roof, and that meltwater refreezes at the colder roof edges or eaves. The result? Water becomes trapped behind the ice, pooling on the roof instead of draining off — eventually finding its way inside.
That’s why many Bergen County homeowners notice icicles forming along the roofline in winter. Pretty to look at, but often a warning sign of a much bigger issue.
1. What Causes Ice Dams in Bergen County NJ
The main culprit is uneven roof surface temperatures.
- Warm air rises into the attic, creating hot spots on the roof.
- Snow melts over those spots and flows down to the colder overhangs.
- The meltwater freezes again, forming an ice wall.
- As more snow melts and runs down, the ice dam grows larger — trapping water behind it.
This water has nowhere to go but under shingles, through cracks, and into your home. That’s why Bergen County homeowners often find water stains on ceilings after a snowy winter. If you’ve noticed icicles forming along your roofline, it’s a likely sign that ice dams may already be causing damage underneath.
👉 If you see these warning signs, contact professional roofing contractors like Eleven Exterior, Inc. for a free inspection before it causes major damage.
2. How to Prevent Ice Dams: Ventilation, Insulation & Barriers
You can’t stop the snow, but you can stop ice dams from forming by keeping your roof’s temperature consistent.

Smart Prevention Steps:
- ✅ Proper Attic Ventilation – allows hot air to escape.
- ✅ Adequate Insulation – keeps warm air inside your home, not your attic.
- ✅ Sealing Cracks & Leaks – eliminates unwanted hot spots.
- ✅ Ice & Water Shield Underlayment – an extra protective layer roofing contractors install to stop leaks even if ice dams form.
While some homeowners try shoveling or raking snow, this is only a temporary fix — and climbing onto an icy roof in Bergen County winters is unsafe. The real solution is addressing ventilation, insulation, and protective barriers so your roof stays strong year after year.
Bergen County Ice Dam Damage — What to Do Next
From Alpine and Franklin Lakes to Ridgewood, Wyckoff, and Ho-Ho-Kus, Bergen County homes face tough winters. Ice dams don’t just damage roofs — they threaten siding, gutters, and even the interior of your home.
At Eleven Exterior, Owens Corning Preferred Contractor, we’ve helped homeowners across Bergen County stop leaks, replace damaged roofing, and install ice and water barriers for long-lasting protection.
📞 Call us today at 201-800-5856 or click below to schedule your free winter roof inspection.







