Are you planning to give your roof a good cleaning this fall? Between constant debris and weather elements, there’s no question your roof takes a beating throughout the year. However, if you’ve thought about power washing your roof, you may want to think twice. While power washing may seem like a great idea in theory, there are many reasons to avoid this method of cleaning. Though power washing can be effective for cleaning other parts of your home, it can have long-lasting damage to your roof’s surface.

Here’s why you should avoid power washing your roof: 

image of roof

Permanent damage

Power washing is likely to strip the granules off your roof’s shingles which protect your home from rain, snow and sleet. Damage to shingles will deteriorate the integrity of your roof, causing the need for a replacement much sooner than its expected lifespan. Also, if you’re new to using a power washer, chances are you won’t know how to properly regulate the output of pressure coming from the machine. If you assert too much water pressure when spraying, your shingles can easily fall off. For older roofs in particular, power washing can especially cause severe damage. This is because your roof’s shingles have likely already experienced deterioration, making them more susceptible to further damage from the power washer. Furthermore, if you have a large amount of debris on your roof, power washing can cause unwanted moss and fungus to spread to other parts of your home’s exterior, potentially resulting in the growth of bacteria and mold.

Warranty issues

Many people don’t realize that roof warranties often exclude the use of a power washer, as it is likely to cause irreparable damage. If power washing causes permanent damage to your roof, there’s a high likelihood that your warranty will not cover the cost to fix it. If you have an extended manufacturer’s warranty, be sure to read the fine print and avoid doing anything that can potentially have a detrimental effect on your roof’s condition.

If you believe your roof needs to be cleaned, it’s always best to consult with a qualified professional who will be able to fully inspect your roof and provide the best recommendations. From there, you’ll be able to proceed with a cleaning option that will preserve your roof for years to come.

Let AVA Handle Your Roofing Needs

Are you in need of roof maintenance or repairs this fall? Get in touch with AVA Roofing and let our experienced professional contractors answer all your questions!

Does your home need to withstand substantial amounts of snow for several months of the year? If so, a cold roof system may be the most durable and efficient roofing option. With a “cold roof,” air outside of your home are can freely flow under your roof’s sheathing, preventing unwanted leakage and damage. Here are three of the main reasons to consider a cold roof system:

Prevention of ice dams and leakage

With a typical “warm roof,” snow that hits the roof directly quickly begins to melt, run down the roof and freeze when it reaches the edge of the roof. When this happens repeatedly, ice dams are likely to occur which can add significant pressure to your roof’s core structure. Ice dams, also commonly referred to as icicles, can cause major damage to your shingles, as well as leaks inside your home. With a cold roof, your roof will remain a cool temperature in winter weather, preventing the freezing of snow and formation of ice.


Poor ventilation and insulation can cause severe condensation issues on your ceiling and walls, which can lead to damaged wooden fixtures or furniture, and even potential negative health effects. Excessive moisture can also lead to mold and decay, especially in areas of your home where moisture is most concentrated, including your kitchen and bathrooms. Because of how a cold roof works to prevent melting and refreezing, it can significantly reduce the incidence of humidity and moisture-related problems, reducing the likelihood of permanent damage to the interior of your home.

Easy installation

In many cases, a cold roof can be installed right over your existing roof. By stripping your roof down to its layer of plywood, your roofer will install several layers of new material, as well as an extra layer of insulation if needed. Through the cold roof system, there will be new space added between the first roof deck and the shingled roof layer, allowing air to easily come through in order to keep the top roof sheathing and shingles cold, while keeping your house warm.

Learn more about a cold roof system with AVA

Interested in exploring a cold roof system? Get in touch with our team at AVA Roofing and let us help you through this process!

Call WNY’s Trusted Roofers Today for a Free Quote!