Soft Washing vs Pressure Washing for Asphalt Shingle Roofs (What Manufacturers Recommend)
Asphalt shingle roofs remain one of the most popular choices for homes thanks to their durability, affordability, and curb appeal. Like any exterior surface, however, shingles are vulnerable to algae, mold, dirt, and debris that can shorten their lifespan if not properly maintained.
When it comes to cleaning, many homeowners wonder: Should you pressure wash or soft wash your roof? At Ultimate Clean Power Washing, we help homeowners in Powell understand the safest and most effective approach—and what shingle manufacturers recommend.
Why Roof Washing Matters
Roof stains may look like a simple cosmetic issue, but they often signal algae and mold growth. Left untreated, these organisms can deteriorate shingles, weaken their protective granules, and lead to leaks or premature replacement. Regular roof washing doesn’t just improve appearance; it extends the life of your roof and protects your investment.
Pressure Washing: The Risks
Traditional pressure washing uses high-powered streams of water to blast away dirt and stains. While effective for hard surfaces like driveways or pavers, it’s too aggressive for asphalt shingles. The force can strip away protective granules, loosen shingles, and void your manufacturer’s warranty. This is why roofing manufacturers strongly advise against pressure washing asphalt roofs.
Soft Washing: The Recommended Method
Soft washing, on the other hand, uses low-pressure water combined with specially formulated cleaning solutions to gently remove contaminants. It eliminates algae, moss, and stains without damaging shingles or their protective coating. Soft washing is approved by shingle manufacturers as the safest, most effective method for roof maintenance.
Benefits of soft washing include:
- Preserves shingle integrity and manufacturer's warranty
- Safely removes algae, moss, mold, and dirt
- Restores roof color and appearance
- Extends the overall lifespan of your roof
What Manufacturers Say
Most major shingle manufacturers, including GAF and Owens Corning, caution against high-pressure washing methods. Instead, they recommend soft washing or gentle chemical cleaning to maintain warranty coverage and ensure shingles perform as intended. Following these guidelines is not just smart for protecting your roof—it’s essential for protecting your investment.
Trust the Local Experts
At Ultimate Clean Power Washing, we take manufacturer recommendations seriously. As the leading pressure washing experts in Powell, our team uses the proper soft washing techniques and solutions designed for asphalt shingles. We know how to eliminate stains while preserving your roof’s durability and beauty.
Final Thoughts
When it comes to asphalt shingle roofs, the choice between pressure washing and soft washing is clear. High-pressure methods may deliver fast results but can cause lasting damage and void warranties. Soft washing, on the other hand, restores your roof safely, effectively, and in line with manufacturer guidelines. For Powell homeowners, trusting professionals who understand the difference ensures your roof stays strong and beautiful for years to come.
If your roof is showing stains, streaks, or algae growth, contact Ultimate Clean Power Washing today. We’ll provide the safe, effective care your shingles deserve.
