Nunemakers Roofing & Construction | Roofing Services in Greencastle, PA 17225

Safely removing algae and moss requires a careful approach to avoid damaging your shingles. We use a low-pressure, professional-grade cleaning solution specifically formulated to kill the organic growth at the root without the harsh scrubbing that can strip protective granules. This method is effective for the common issues we see in Greencastle's climate and helps prevent rapid regrowth.

In our Greencastle area, it's more than just cosmetic. Moss holds moisture against your roof deck and under shingles, which can lead to wood rot, compromised decking, and leaks over time. Algae stains, while less structurally damaging, can indicate moisture retention. Addressing both promptly with professional cleaning and treatment is key to preventing costly repairs down the line.

For Greencastle homes, especially those with shade or north-facing slopes, we recommend a visual inspection at least twice a year—in spring and fall. A professional cleaning may be needed every 2-3 years to manage growth, but this can vary based on your tree coverage and roof exposure. We offer free evaluations to recommend a maintenance schedule tailored to your specific home.