Under Pressure Cleaning & Sealing Services proudly offers a special non-pressure roof cleaning system designed to clean and protect asphalt and tile roofs. Our technique is approved by the Roof Cleaning Institute of America for its ability to eliminate roof algae and prevent it from recurring. The Dangers of Roof Algae  The threat of roof algae goes beyond permanent ugly stains. Left unchecked it will gradually damage wood and other underlayment materials. A serious roof algae problem will eventually cause leaks, structural damage, and could lead to early roof replacement. Most roof warranties don’t include coverage for algae damage. Leaving you to pay for the repairs out of pocket. The Benefits of Non-Pressure Roof Cleaning We use a non-pressure chemical wash roof cleaning system specially formulated to kill algae down to the spore level. It also leaves behind a protective barrier, inhibiting algae growth for years to come. You don’t have to worry about damage to your gutters or lawn. The way our water-free chemical permeates shingles and roof tiles prevents excess chemical runoff. It’s applied without the use of low or high-pressure devices. Not only does this maximize the saturation on the roof surface. It also reduces the risk of damaging the shingles or roof tiles, which happens with most pressurized roof cleaning systems. The Risks of Other Roof Cleaning Methods High-pressure roof cleaning systems often damage asphalt shingles by spraying away the protective surface granules. There’s even enough pressure to shift or crack roof tiles. Even low-pressure roof cleaning systems, like water brooms, still use a potentially damaging amount of pressure. The foot traffic and repetitive passes of the low-pressure sprayer come with the same risks as high-pressure methods. This kind of damage is rarely covered under a typical homeowner’s insurance policy and might even void the roof warranty. Premium Roof Cleaning Services You don’t have to worry about any of these problems when we clean your roof. Our non-pressure system’s chemical wash removes and prevents the maximum amount of algae, with a minimal impact on your roof. The way the solution saturates the roof surface continues to inhibit algae growth even after we’re one cleaning. Many of the roofs we clean with our non-pressure system remain algae-free for up to five years. Our technicians receive special training to minimize the number of steps they need to take on your roof. This further reduces the risk of torn shingles or damaged roof tiles. All without having to use pressurized equipment. We are so proud of our non-pressure roof cleaning system that we even back it with a two-year warranty.