Winter Roof Damage Risks in Eastern North Carolina
Ice Dams (Rare but Possible):
Cause: Ice dams form when warm air escapes through the attic, melting snow on the roof that refreezes at the edges.
Impact: Water backs up under shingles, leading to leaks and water damage.
Relevance in Wilmington: Occurs during rare freezes when roofs are poorly insulated.
Shingle Cracking or Curling:
Cause: Fluctuations between freezing and warmer temperatures can cause expansion and contraction, leading to brittle, cracked shingles.
Impact: Exposed areas become vulnerable to leaks and wind damage.
Moisture Intrusion:
Cause: Coastal humidity can worsen when ice or snow melts, seeping into weak spots on the roof.
Impact: Mold growth, rot, and long-term structural damage.
Wind-Driven Ice and Snow:
Clogged Gutters and Icicles:
Cause: Freezing temperatures can create ice in gutters, leading to blockages.
Impact: Water overflows onto fascia and siding, increasing the risk of roof rot.
Salt Exposure:
Cause: Coastal air carries salt, which can corrode metal roof components like flashing and fasteners.
Impact: Compromised roof integrity, especially during winter storms with high winds and salt spray.
Tree and Wildlife Damage:
Cause: Winter winds can cause overhanging branches to scrape or fall onto roofs, while squirrels and other animals may shelter in attics or chew on roofing materials.
Impact: Holes, punctures, and weakened shingles, leading to potential leaks.
UV Damage Post-Snow:
Cause: After snow or ice melts, the combination of moisture and strong sunlight can degrade shingles.
Impact: Premature aging and loss of shingle granules.
Proactive Measures for Homeowners in North Carolina:
Schedule annual roof inspections, especially after stormy or icy weather.
Keep gutters clean to avoid blockages.
Trim overhanging branches to reduce damage from falling debris.
Ensure proper attic ventilation to prevent ice dams and condensation buildup.
By addressing these potential risks, homeowners can prolong their roof’s lifespan and maintain its structural integrity.
