How Much Does a Roof Wash Cost?

How Much Does a Roof Wash Cost?

Roof washing is a great way to extend the life of your roof. It removes algae, moss, mold and mildew and prevents oxidation on metal roofs. It can also be a cost-effective way to keep your roof looking clean and fresh. If you have a metal roof, it’s especially important to keep it clean in order to extend its useful life. See more About all washed Up.


When you need a roof wash, you might wonder how much it costs. This type of cleaning involves rinsing the surface of your roof with low-pressure water. The cleaning solution is used to kill moss, algae, and dirt on the roof. Soft washing services typically cost $0.30 to $0.75 per square foot. This method is good for a general clean of your roof, and it will not damage asphalt shingles.

The cost varies depending on the type of roof you have and the area you need cleaned. For tar and gravel roofs, a chemical wash will help remove mold and mildew spots from the surface. However, this service can damage weak tiles or cause other problems. A chemical wash also does not remove debris from the surface.

Dos and don’ts

Roof washing is an important aspect of home maintenance, but it’s important to use the correct methods to get the best results. Proper roof cleaning can improve the lifespan and functionality of your roof. It can also increase the appeal of your property. Here are some tips to ensure you get a clean roof:

First, roof washing shouldn’t be performed on extremely hot days. UV rays from the sun can easily evaporate the bleach that is in the cleaning solution. If you’re unsure, seek professional advice. Also, try to avoid washing your roof on days when it’s overcast or rainy.

Next, do not pressure wash your roof. High-pressure washing can harm your roof. It can also cause extensive damage. Remember that densely growing algae and moss won’t wash away instantly. It can take two or more rainstorms for them to disappear. Also, cleaning solutions take time to work. You should never assume that a solution will clear up growth overnight.


Roof wash safety involves following regulations and using the proper equipment. Whether you’re cleaning your own home or an office building, you must be aware of local, state, and national regulations. Don’t assume that you can just lather up some soap and spray it on your roof; it is important to protect your plants, shrubs, and other objects on your roof.

Environmental impact

Pressure washing your roof can have a negative environmental impact, but there are other alternatives. Soft roof washing is much more cost-effective and gentler on your roof. It also requires less water. Pressure washing, by contrast, can use up to 60 gallons of water per minute, which can overload sewer systems and contaminate local waterways. Discover more.