Quick answers
FAQs & Resources
Maine's cool, damp climate creates the perfect environment for algae, moss, and lichen to grow on your roof. While it may start as a few black streaks or patches of green, that growth can trap moisture, lift shingle edges, and contribute to premature wear over time.
Professional softwashing safely removes this biological growth without the damage that high-pressure washing can cause. Keeping your roof clean not only restores its appearance but also helps protect one of the biggest investments you'll ever make.
Over time, an unmaintained roof can develop vulnerabilities that extend far beyond its appearance. Biological growth can contribute to premature shingle deterioration, creating weak points in your roof system that may be more susceptible to damage during severe weather.
Insurance companies are continually evaluating their risk, and many now use aerial imagery, drones, and exterior inspections to identify signs of deferred maintenance. A roof showing significant biological growth or neglect may receive additional scrutiny during underwriting or renewal because it can indicate an increased risk of future claims.
Every insurance company has its own underwriting guidelines, and coverage decisions are made solely by your insurance company. While professional roof cleaning does not guarantee policy approval, renewal, or continued coverage, maintaining a clean, well-cared-for roof demonstrates that your home is being properly maintained and may help reduce concerns if your property is inspected.
Most roof cleaning companies rely on one of three approaches:
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Walking on the roof, increasing unnecessary foot traffic on shingles that may already be weathered or fragile.
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Working from ladders, requiring technicians to clean from multiple positions around the home.
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Spraying from the ground with a standard hose, which can limit reach and application precision on taller or more complex roofs.
At Mighty Moose Softwash, we've invested in a professional ground-based carbon fiber application system that allows us to safely clean the vast majority of residential roofs without walking on them.
This approach provides:
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Minimal foot traffic on your roof whenever possible.
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Precise application of our cleaning solution, even on hard-to-reach areas.
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A safer, more efficient process for both your home and our technicians.
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Purpose-built softwash equipment, designed specifically for roof cleaning, not modified pressure washing equipment.
Our goal is simple: restore your roof using one of the safest and most effective softwashing methods available while treating your home with the same care we'd expect for our own.
Maintenance for your roof.
Resources
ARMA – Algae & Moss Prevention and Cleaning for Asphalt Roofing Systems
"Moss can cause the leading edges of the shingles to lift or curl, which increases the risk of shingle blow-off during wind events. In severe cases, moss build-up can cause lateral water movement resulting in moisture damage to the roof deck or may even cause leaks."
GAF Technical Bulletin R-102 – Algae Staining on Shingled Roof Surfaces
"Do not power wash the shingles to clean the shingles. Some roof cleaning companies offer this service. However, it is not recommended as it may dislodge granules, which can lead to premature shingle failure"
Mass.gov – The Truth About Your Roof: How Insurers Use Aerial Imaging to Assess Roof Condition
"If your roof is at a certain age, has a significant amount of moss and/or cracked shingles, or has too many trees hanging over it, etc., they can decide that they do not want to insure your home."
Not sure if your roof qualifies?
Send in property info, photos and contact below and we'll confirm estimated size and if roof condition is expected for a cleaning.