Massachusetts Winter Storm: How to Prevent Ice Dams & Roof Damage

Massachusetts Homeowners Prepare for Storm, Risk of Ice Dams

February 21, 2026 – Homeowners across Massachusetts are bracing for a winter storm expected to bring heavy snowfall Sunday night into Monday, along with a heightened risk of ice dam formation.

The combination of incoming cold temperatures and substantial snowfall creates ideal conditions for ice dams to develop. An ice dam is a ridge of ice that forms at the edge of a roof, preventing melting snow from draining properly. This can lead to water backing up under shingles and leaking into homes, causing damage to walls, ceilings, floors, and insulation.

While homeowners can purchase snow rakes to remove some snow from their roofs, experts say the most effective solution is to have the entire roof cleared. Simply removing snow from the lower portion of the roof can exacerbate the problem.

“A lot of people get snow shovels and take the snow about three to four feet up but the problem with that is the snow you left up above is now melting and freezing at nighttime,” explained contractor Stephen Navarro. “It melts and freezes and causes an ice dam all up the roof. So you just made things worse.”

Navarro emphasized the importance of prompt snow removal, advising homeowners to address the issue as soon as possible. He noted that while current temperatures in the low 30s may not immediately cause freezing, existing snow from previous dustings should be monitored closely once the heavier snowfall begins.

Ice dams form when heat escaping from a home warms the roof, melting snow. This meltwater then flows down to the colder edges of the roof and refreezes, creating the dam. According to the Tri-County Chamber of Commerce, Massachusetts consistently ranks high in winter-related insurance claims due to snow and freeze-thaw cycles.

Preventative measures include ensuring proper attic insulation and ventilation. Insufficient insulation and blocked soffit vents can contribute to heat loss and ice dam formation. Master Roof, a Massachusetts roofing company, highlights the importance of addressing airflow issues and maintaining older roofing materials.

National data indicates that approximately 1 in 50 U.S. Homeowners files a water/freezing damage claim annually, with the average ice dam insurance claim ranging from $7,000 to $12,000. A 2,000 square foot roof covered with 12 inches of snow can bear a weight of roughly 24,000 pounds.

Homeowners are encouraged to be proactive in managing snow accumulation on their roofs and to address any potential issues before they escalate into costly repairs. A winter roof inspection is recommended for homes that have experienced leaks, past ice dams, or heavy snowfall.