A to Z Construction | Roofing Services in Manistique, MI 49854

The most effective prevention is a combination of proper attic insulation and ventilation to keep your roof deck cold and consistent. We also recommend installing waterproofing underlayment at the eaves during a roof replacement or repair. For existing homes, we can perform an energy audit of your attic and recommend targeted improvements to minimize the risk of ice dam formation, which is a common issue with our local freeze-thaw cycles.

While the black streaks (Gloeocapsa magma algae) themselves don't typically rot shingles, they do retain moisture against the roof surface. Over time in our humid climate, this constant moisture can accelerate the granular loss on asphalt shingles, potentially shortening their lifespan. More importantly, it's a sign of moisture retention. We offer professional, low-pressure cleaning treatments that safely remove the stains and include an application of zinc or copper strips to inhibit future growth.

Not always. It depends on the extent of the water intrusion and the age of your existing roof. We start with a thorough inspection in your attic to assess the decking and insulation. Often, localized repairs to damaged sections, coupled with improvements to attic ventilation and ice & water shield installation at the eaves, can resolve the issue and protect the home for years to come. We'll always provide a clear, honest assessment and only recommend a full replacement if it's truly in the best interest of your home's protection.