Why Roof Washing Is Essential: The Complete Guide


Often the unsung hero of your property, your roof plays a vital role in sheltering you and your family from the elements. However, it can become a victim of gradual wear and tear, negatively impacting not only your home’s curb appeal but also your wallet.

In this blog post, we will explore the significance of roof washing and why it is essential to maintain a clean and well-preserved roof.

What’s Eating Your Roof: Damage Caused From Algae And More

Have you ever noticed those black streaks on your roof and wondered what they are? With time, your roof can attract unsightly and potentially harmful elements, such as Gloeocapsa magma, lichen, and algae. These unwanted guests not only reduce your home’s aesthetic appeal but can also cause damage if not addressed.

Below, we will take a closer look at some of these potentially harmful elements:

  • Gloeocapsa magma: This black, streaky growth is a form of blue-green algae that commonly invades roofs in humid climates. It not only tarnishes your roof’s appearance but also shortens its lifespan by breaking down the roof’s shingles.

  • Lichen: Lichen combines two separate organisms, algae, and fungus, creating a stubborn and unattractive growth on your roof. Its root-like structures can penetrate and damage your roofing material.

  • Algae: Black streaks or discoloration on your roof are often the result of algae growth. While it might seem like a purely cosmetic issue, it can lead to eroding your shingles while reducing their durability and life span.

Trouble Zones: North-Facing And Shaded Areas Vulnerable To Damage

When you think about it, it makes sense that your roof’s north-facing side and shaded areas are more prone to hosting roof-damaging elements, as these areas receive less sunlight and are more likely to retain moisture, providing the ideal conditions for algae, lichen, and other growths to thrive. Regularly cleaning these sections is great for preventative maintenance, helping to prevent costly repairs down the road.

The Benefits Of Washing Your Roof

  • Boost Longevity and Savings: A well-maintained roof can last over 30+ years. Regular cleaning can help you avoid costly repairs or premature roof replacement, making it a wise investment in your home’s future.

  • Revive Curb Appeal and Property Value: Engaging in routine roof washing not only extends your roof’s life but also leaves it looking as good as new. It restores your home’s curb appeal, which can be especially important if you’re considering selling your property. A clean roof not only adds value but also enhances the overall aesthetics of your home.

  • Trim Energy Expenses: These organisms form dark stains to shield themselves from the sun, which absorb and amplify heat on your roof. This excess heat seeps into your home, resulting in heightened cooling and energy bills. A clean roof helps keep your energy costs in check by removing this heat-absorbing layer.

Don’t Risk Your Home Insurance Benefits Because Of A Neglected Roof

Homeowner’s insurance is an essential safety net in case of unexpected repairs or disasters. However, insurance companies are becoming stricter, particularly when it comes to the condition of your roof. Many homeowners pay a considerable premium to protect themselves. Still, it’s becoming more common for insurance companies to threaten policy cancellation or deny a claim due to poor roof maintenance or failing to maintain your property correctly.

It’s vital to understand that neglecting your roof can lead to problems that home insurance won’t cover. In some cases, they might even demand a roof replacement. To avoid these problems, homeowners should take some basic steps to care for their roofs. A dirty, algae-covered roof is a red flag, and failing to address it promptly could lead to your policy being dropped.

Leave It To The Pros For Washing Your Roof


When it comes to preserving your home’s charm and durability, professional roof cleaning service through soft washing is the way to go. At McKown Pressure Washing, we’re dedicated to rejuvenating your roof’s appearance and protecting its structure.

Our method involves using a low-pressure wash with a surfactant and biodegradable cleaner. McKown’s Pressure Washing system is the best at removing unsightly black stains that often linger in hard-to-reach places. Unlike standard pressure washing methods, McKown’s soft wash is designed to access every nook and cranny of your roof.

DIY roof cleaning risks damage to all types of roofs, from asphalt shingles to concrete tiles and gutters. High-pressure wash methods used by untrained individuals can dislodge granules from shingles, reducing their lifespan and effectiveness. It can also lead to accidents and structural damage.

You can trust McKown for professional roof washing services that ensure your roof looks its best and in turn avoid those DIY pitfalls.


Roof washing is not just about aesthetics; it’s about protecting your investment, preserving your home’s beauty, and maintaining your insurance coverage. Regular inspections and maintenance can help your roof reach its full potential, ensuring it remains a reliable shield against the elements for years to come.

So, don’t wait; invest in the longevity of your roof today and reap the benefits of a clean, well-preserved, and cost-effective solution.

If you would like to receive a quote for pressure washing your roof, please click here. Alternatively, you can reach us during our office hours, from Monday to Friday, 8:00 a.m. to 4:00 p.m. Eastern Standard Time (excluding major holidays), by calling (757) 631-2127 or by emailing us at info@mckownpressurewash.com.