Ice Dams: Prevention and Leak Repair for Cold-Climate Roofs
Roof leaks rarely start as emergencies — they start as small, fixable problems. In this guide, Roof Leak Repair Specialists, your local licensed expert in Burien, WA, explains what ice dams: prevention and leak repair for cold-climate roofs means for your home and when to call a certified expert.
How Ice Dams Form
Ice dams start with heat loss: warm air escaping into the attic melts roof snow, which refreezes at the cold eaves. The growing ice ridge traps subsequent meltwater, which backs up under shingles — shingles shed water flowing down, not water pushed up. The result is interior leaks far from any roof defect.
Warning Signs
Big icicles at the eaves, ice ridges along the gutter line, and water stains on exterior walls or ceilings after snowfalls all signal damming. Uneven snowmelt — bare patches high on the roof with snow at the eaves — reveals the heat-loss pattern driving it.
What Not to Do
Never chop, hammer, or pick at an ice dam — you will destroy shingles. Avoid dumping rock salt or calcium chloride in piles on the roof; it damages roofing and landscaping. Heat cables treat the symptom in one spot while the underlying heat loss continues.
Lasting Prevention
The permanent fix is building science, not roofing brute force: air-seal attic bypasses, add insulation to recommended levels, and ensure continuous soffit-to-ridge ventilation so the roof deck stays cold. When dams have already caused leaks, repair the water damage path and address the heat loss before next winter.
A Local Note for Burien Homeowners
Burien gets roughly 37 inches of rain a year, most of it between October and April. Moss, saturated shingles, ice dams on cold snaps, and wind-driven rain off Puget Sound create the toughest leak conditions of any city we serve. Burien's housing ranges from 1950s ramblers near Boulevard Park to waterfront homes at Three Tree Point and new builds near Town Square. Older roofs with moss-damaged shingles and aging cedar are the most leak-prone. Burien's near-constant drizzle is a brutal leak detector — small flashing gaps that survive a California summer fail fast here. We build every repair for Puget Sound rain: positive drainage, sealed penetrations, verified with water tests.
Need Help With a Leak?
If you are seeing any of the warning signs above, do not wait for the next rain to make it worse. Roof Leak Repair Specialists offers free inspections with photos and upfront pricing — Built for Burien's Rain Our call representatives are available 24/7 for emergencies.