How to Prepare Your Roof for Northeast Winters

Living in the Tri-State area means your roof takes a beating every winter. From Mamaroneck to Stamford to northern New Jersey, homeowners face the same threats: ice dams, heavy snow loads, and relentless freeze-thaw cycles that exploit every weak point in a roofing system.

Understand the Threats

• Ice dams — When heat escapes through your attic, it melts snow on the upper roof. That water refreezes at the eaves, creating a dam that traps water and forces it under shingles.
• Snow load — Wet Northeast snow can weigh 20 pounds per cubic foot. Prolonged accumulation puts serious stress on your roof structure, especially on flat or low-slope sections.
• Freeze-thaw cycles — Water seeps into tiny cracks during the day when temperatures rise, then expands as it freezes overnight. Over a full winter, this can crack flashing, split shingles, and open seams.

Pre-Winter Checklist

1. Clean gutters and downspouts — Clogged gutters are the number one contributor to ice dams. Clear all leaves and debris before the first freeze.
2. Inspect attic insulation and ventilation — Proper insulation keeps heat inside your living space and out of the attic. Adequate soffit and ridge ventilation keeps the roof deck cold and prevents uneven snowmelt.
3. Check flashing around chimneys and vents — Seal any gaps with roofing cement or have a professional re-flash vulnerable areas.
4. Trim overhanging branches — Heavy, ice-laden branches can snap and puncture roofing materials.
5. Schedule a professional inspection — A roofer can spot vulnerabilities you might miss from the ground. At Roofs Etc, we recommend an annual fall inspection for every home in the Northeast.

When Snow Piles Up

If snow accumulates beyond 12 inches on your roof, consider using a roof rake to clear the lower 3-4 feet from the eaves. Never climb onto a snow-covered roof yourself. If you notice large icicles forming along the eaves, that is a strong sign ice dams are developing and you should call a professional for safe removal.