Definition
A ridge of ice that forms at the roof's edge when heat escaping into the attic melts snow that refreezes over the cold eaves. The trapped meltwater backs up under shingles and leaks inside.
Why this term matters for homeowners
Home-performance terms map to attic ventilation, insulation, energy bills, and how the systems above your ceiling protect the roof's lifespan.
- Use this term to ask better follow-up questions during estimates.
- Look for this language in Learn and Evaluate guides to connect definition to decisions.
- Confirm how this applies to your specific roof age, pitch, and home layout.
Related pages
Category: Home Performance