Asphalt shingles are one of the most commonly used roofing materials for both residential and commercial properties due to their durability and cost-effectiveness. However, while keeping your roof clean is important, using a pressure washer on asphalt shingles is highly discouraged. In fact, pressure washing an asphalt shingle roof can cause severe damage, leading to expensive repairs or even a complete roof replacement. Here’s why you should avoid pressure washing your asphalt shingle roof and opt for a professional roof cleaning service instead.
1. Damage to the Protective Granules
The surface of asphalt shingles is coated with granules designed to protect the shingles from UV rays and harsh weather conditions. These granules also provide fire resistance and help with water drainage. However, pressure washing can easily dislodge these granules. Even moderate pressure is enough to strip away the granules, leaving your roof vulnerable to damage from the sun and water infiltration.
When granules are removed from the shingles, they can become airborne projectiles, potentially injuring workers or passersby. Additionally, the removal of granules compromises the integrity of the shingles, reducing their lifespan and increasing the likelihood of leaks.
2. Increased Risk of Roof Leaks
One of the primary functions of the granules on asphalt shingles is to create a barrier that prevents water from penetrating through the roofing system. When these granules are blasted away by high-pressure water, the shingles become exposed to moisture. This can lead to roof leaks, allowing water to seep into your home and cause structural damage, mold growth, and other costly issues.
By avoiding pressure washing and opting for soft washing or a professional roof cleaning service, you can ensure that your roof stays intact and leak-free.
3. Soft Washing: The Best Method for Asphalt Shingle Roofs
For cleaning an asphalt shingle roof, the recommended method is soft washing. This process involves applying a gentle cleaning solution that removes dirt, algae, moss, and lichen from the surface without damaging the shingles. A soft wash uses low-pressure water, ensuring that the protective granules remain in place while thoroughly cleaning your roof.
Soft washing is the safest and most effective way to maintain your roof’s appearance and longevity. It not only removes stains and black streaks caused by algae, but it also prevents the regrowth of organic matter like moss and lichens that can degrade your roof over time.
4. Preserve the Lifespan of Your Roof
Regular roof cleaning is essential to extend the lifespan of your asphalt shingle roof. However, using high-pressure washing can do more harm than good. By choosing soft washing over pressure washing, you avoid the risk of shingle damage and leaks, while keeping your roof clean and well-maintained for years to come.
A professional roof cleaning service will apply eco-friendly detergents that break down dirt and organic growth, leaving your roof spotless without compromising its structure. This approach ensures that your roof remains in peak condition, providing protection for your home and maintaining its curb appeal.
Conclusion
While pressure washing might seem like a quick fix to clean your roof, it poses significant risks to asphalt shingles. The high pressure can remove protective granules, increase the risk of leaks, and shorten the lifespan of your roof. Instead, opt for a professional roof cleaning service that uses soft washing techniques to safely and effectively clean your roof without causing damage.
For a long-lasting, healthy roof, rely on a professional roof cleaning company to keep your asphalt shingles free from moss, algae, and dirt. Soft washing is the safest method to ensure your roof remains durable and beautiful for years to come.
