Roofing United | Roofing Services in Commack, NY 11725

Ice dams cause water to back up under shingles, leading to leaks and interior damage. The best repair starts with a professional inspection to assess the full extent of the water damage to the roof deck, insulation, and attic. We then repair or replace compromised materials and ensure proper attic ventilation and insulation—key factors in preventing future ice dams. For lasting protection in our climate, we often recommend installing an ice and water shield along the eaves during the repair.

Those dark streaks are Gloeocapsa magma algae, common in our humid Long Island climate. While a professional soft wash can safely remove existing stains, prevention is key. We recommend installing algae-resistant shingles, which have copper granules that inhibit future growth. For existing roofs, ensuring proper sun exposure by trimming overhanging branches and considering zinc or copper strips at the roof ridge can provide long-term protection against recurring stains.

This depends on the roof's age, the extent of damage, and the frequency of issues. If your roof is nearing the end of its lifespan (typically 20-25 years for asphalt shingles) and you're experiencing widespread leaks, multiple damaged areas, or recurring problems like ice dam damage, a replacement is often more cost-effective. For newer roofs with localized damage from a single storm or a specific issue, a targeted repair is usually sufficient. We provide a detailed assessment to help you make the right, long-term decision for your home.