What are the Average Costs of Roof Cleaning?
The national average cost of roof cleaning is $412.
Typically, homeowners have spent anything between $294 and $569, with the lower end being $150 and the higher end about $860.
The cost of cleaning your roof depends on a number of factors. They are:
- Type of roof material
- Size, design, height and slope
- Moss and algae
Let’s look at each one in detail.
Type of Roof Material
You may already be aware that roofs are available in various kinds of materials. Hence, the cleaning solutions also differ according to the roof.
For instance, asphalt roof shingles are one of the most common roof materials used. They are designed to wear out slowly over time and are delicate and layered.
For such roofs, low pressure-washing with no more than 30 psi – similar to a garden sprayer is recommended.
Similarly, roofs that are made up of materials like ceramic, clay, concrete or slate – all of them require different cleaning methods and solutions.
So the roof cleaning costs will depend on the type of roof material of your home.
Size, Design, Height and Slope of the Roof
Size and slope of the roof will also determine the roof cleaning costs. The bigger and more complex the design of the roof, the costlier it will be to clean it. Other things that affect the cost are gutters and gross area of the roof.
Another factor that can affect the cost is the height of your roof. For instance, if your home is two stories high, it will need more equipment and more work for the professionals to get up there.
The slope of your roof is also another factor that can affect the roof cleaning costs. If it’s very steep, then you may be asked to pay extra as the professionals need to get up there and stay safely on top while cleaning it.
The cost of cleaning your roof will be directly affected by where you live. For instance, if you live close to a beach or where it snows a lot, then the roof will gather mold, dirt and grime faster than if you’re living in the city.
Moss and Algae
Cleaning moss and algae is extremely important. If your house is surrounded by large trees that produce plenty of shade on the roof, then it accelerates the growth of moss and algae.
Rain increases the moisture levels that causes accumulation of moss. It can block the gutters too.
The growth of moss causes dark stains and keeps the roofing materials wet for long. This aggravates rotting of wood and eroding of asphalt shingles.
So the more moss and algae, the more expensive it will be to get your roof cleaned.