Why Snow Accumulation Is a Problem
Snow may look harmless from the ground, but once it piles up it can place major stress on roof framing, decking, and weak points around valleys or flatter sections. The risk grows when fresh snow combines with older packed snow or ice.
How Much Snow Is Too Much?
- Fresh snow: 10 to 12 inches of new snow is about 5 pounds per square foot.
- Packed snow: 3 to 5 inches of older snow can weigh the same 5 pounds per square foot.
- Ice: 1 inch of ice can equal roughly 1 foot of fresh snow in added roof load.
A roof carrying 2 feet of old snow plus 2 feet of fresh snow can exceed the load capacity of many homes, especially older ones.
Signs Your Roof May Be Stressed
- Sagging roof sections
- Severe or sudden leaks
- Cracks in walls or masonry
- Doors or windows that suddenly jam
- Unusual creaking or popping sounds
If you notice those warning signs, leave the area and call a professional immediately.
Safe Snow Removal Tips
Consider Hiring Professionals
Roof snow removal is dangerous. Ice, ladders, falling snow, and slick surfaces all increase the chance of injury. A professional crew has the equipment and experience to handle it safely.
If You Choose to DIY
- Use a long-handled roof rake designed for snow removal.
- Start at the edge and remove small amounts at a time.
- Leave a thin 2 to 3 inch layer behind so you do not damage shingles.
- Stay on the ground whenever possible and avoid walking on the roof.
- Watch where snow and ice will fall before you begin.
- Wear safety gear, including eye protection and a hard hat.
What Not to Do
- Do not use torches, heat guns, or open flames.
- Do not bring electrical devices near melting snow.
- Do not climb onto a snow-covered roof unless you are properly trained and equipped.
Preventative Measures
- Keep gutters and downspouts clear to reduce ice dam risk.
- Trim overhanging limbs so extra snow does not drop onto the roof.
- Improve attic insulation and ventilation to keep roof temperatures more stable.
When in doubt, prioritize safety over convenience. A professional snow removal visit is far cheaper than a collapse, emergency leak, or injury.