Ice dams are one of the most damaging winter problems for Douglas County homeowners. Understanding how they form and how to prevent them can save you thousands in repair costs.
What is an Ice Dam?
An ice dam is a ridge of ice that forms at the edge of a roof and prevents melting snow from draining. When snow on the upper roof melts (from heat escaping the house or from sun exposure), water runs down toward the eaves. If the eaves are cold enough, this water refreezes, forming a dam.
As the dam grows, water pools behind it. This standing water can work its way under shingles and into your home, causing water damage to ceilings, walls, and insulation.
Why Douglas County Homes Are Vulnerable
Our Colorado climate creates perfect conditions for ice dams:
- Sunny days, cold nights – Snow melts during the day and refreezes at night
- Heavy snow loads – More snow means more melt water
- Temperature swings – Rapid changes accelerate the freeze-thaw cycle
- Older homes – Many Castle Rock and Parker homes lack adequate attic insulation
Prevention Strategies
1. Improve Attic Insulation
The root cause of most ice dams is heat escaping from your home into the attic. When your attic is too warm, it melts snow on the roof. Better insulation keeps heat inside and your roof cold.
2. Ensure Proper Ventilation
Proper attic ventilation allows cold outside air to circulate, keeping the roof deck at a consistent temperature. Make sure soffit vents, ridge vents, and gable vents are unobstructed.
3. Seal Air Leaks
Warm air escapes through gaps around:
- Recessed lights
- Attic hatches
- Plumbing and electrical penetrations
- Ductwork
4. Keep Gutters Clear
Clean gutters allow any meltwater that does flow to drain properly. Clogged gutters accelerate ice dam formation.
5. Remove Snow from Roof
After heavy snowfalls, consider having snow removed from your roof—especially the lower few feet near the eaves. Less snow means less meltwater to form ice dams.
Signs of Ice Dam Damage
Watch for these warning signs:
- Water stains on ceilings or walls
- Dripping water inside during or after snow events
- Icicles hanging from gutters (indicates freeze-thaw is happening)
- Ice visible on lower roof edges
- Peeling paint near roofline
What to Do if You Have an Ice Dam
Do NOT Try These Dangerous Methods:
- Don't use a blow torch or heat gun on your roof
- Don't chip ice away with an axe or hammer
- Don't climb on an icy roof
- Don't throw salt directly on shingles
Safe Steps
- Call a professional – Roof snow removal should be done by experienced crews with proper equipment
- Create channels – A professional can create channels through the ice dam to allow water to drain
- Address water intrusion – If water is entering your home, contain it and document for insurance
Ice Dam Concerns?
If you're seeing signs of ice dam formation or want roof snow removed preventatively, contact us. Our Douglas County team provides safe, professional roof snow removal.
Get Help Now