As energy costs rise, homeowners often focus on sealing drafts around windows and doors to enhance energy efficiency. While this helps reduce heating bills, many overlook a more significant issue—heat loss through the ceiling, which can lead to ice damming and cause severe damage to your home.
What Is Ice Damming?
Ice damming occurs when snow on your roof melts and refreezes before it can drain properly. This typically happens when warm air from inside your house escapes into the attic, heating the roof’s surface and causing the snow to melt. As the water flows down the roof, it refreezes near the edges, creating a barrier of ice. Over time, this ice dam obstructs proper drainage, forcing water under your shingles and into your home, leading to leaks and costly repairs.

How to Prevent Ice Dams
To protect your home from ice damming, it’s essential to keep your attic cold while maintaining warmth inside your living space. Here’s how:
1. Improve Attic Insulation
Proper insulation prevents warm air from escaping into your attic. Experts recommend at least 8 inches of R20 insulation on your attic floor.
2. Seal Ceiling Perforations
Warm air can leak through small openings in your ceiling, increasing the risk of ice dams. Check and seal gaps around:
- Light fixtures
- Ceiling fans
- Attic access hatches
- Exhaust vents
- Chimneys
3. Maintain Proper Ventilation
Good airflow helps keep your attic cold and reduces the chance of snow melting too quickly. Ensure that:
- Soffit vents are not obstructed by insulation
- Gable and eave vents are clear to allow air circulation
- Roof vents remain free of snow to promote proper ventilation
4. Consider Protective Measures for New Roofs
If you’re installing a new roof, ask your contractor about:
- Roof felt underlayment for added protection
- Heating cables as a temporary solution to reduce ice buildup
5. Get a Professional Inspection
If you suspect your home is at risk of ice damming, consult a professional. Experts can use diagnostic tools to identify problem areas and recommend solutions before damage occurs.
What to Do If an Ice Dam Forms
If an ice dam develops on your roof, taking quick action can help minimize damage. Follow these steps:
- Call a professional – Do not attempt to remove the ice dam yourself, as this can cause further damage.
- Document the damage – Take photos and contact One Insurance.
- Protect your belongings – Move damaged items and relocate valuables to prevent further loss.
- Hire a restoration contractor – A specialist can inspect the damage and take immediate action to prevent further issues.
Ensure You’re Covered for Ice Damming
Ice damming can lead to expensive repairs and home damage, but the right insurance coverage can help. Contact One Insurance to review your policy and ensure you’re protected against potential ice dam damage. Our advisors are here to provide peace of mind and help you navigate your coverage options.
For assistance, visit your local One Insurance office or call to speak with your advisor.
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