How To Remove Mold and Algae from Your Roof?

Having mold or algae on your roof can frustrate homeowners who love to keep their homes clean and avoid major damage. Mold and algae can build up at any place where there is moisture. One major place in a home where moisture is abundant is the roof. You can often find mold and algae in places like water pipes and roofs. 

It is also quite common in humid regions where moisture stays on the roofs of the houses; however, this can be prevented, and it is possible to remove mold and algae from the roof. 

Homeowners must remove mold and algae from their roofs on time. Well, if you are looking for the right information and don’t want this to happen to you, we have you covered. Let us guide you and help you by providing the right information so that you do not have to depend on someone just to be aware of this.

Why You Should Remove Mold and Algae?

It is extremely important to remove mold and algae to avoid long-term damage to your roof. It is also important to note that there is not much that can be done to prevent algae and mold from landing on the roof. 

But prevention measures are necessary to avoid the degradation of roofing materials, especially wood and asphalt shingles. These materials are prone to degradation quickly if left untreated, and some other materials that can also be affected are metal, clay, etc. 

One more thing you might have to face is that no matter how hard you try to get rid of these algae and mold spores, it is hard to keep them mold or algae free. You can’t do much about algae and mold spores from the air landing on your roof. 

It is also not a very easy task, and in most cases, professional help is required. To keep mold or algae away from your roof, there are some important steps that you should follow:

Step 1: Use of Safety Gear for Cleaning

Firstly, it is always advisable to consult a professional to do this job. However, if you can climb a ladder and are not afraid of heights, you can also deal with it by yourself if it has not grown significantly. 

The first step is to wear proper protective gear. You should wear proper gloves, a breathing mask, and shoes. Anti-slip shoes are a must, as these will prevent you from slipping. Also, the mask will protect you from harmful chemicals. 

Proper clothing is also an essential part of the protective gear; wear full-sleeve clothes and full-length pants.

Step 2: Use of Bleach Solution for Mold and Algae Removal

The best and the most efficient way to remove mold from your roof at home is by using a bleach solution. You have to prepare a bleach solution at home and spray it on the effected parts of your roof. Making a bleach solution at home is easy. 

You must take one gallon of water and mix 60ml of trisodium phosphate. The chlorine in the bleach solution will kill the mold and algae on the roof. Also, TSP present in the solution will remove the decoloration as well. 

It is also important to remember that this bleach solution, when passed down through the roof onto the lawn or some other things like furniture, can leave stains on it that are hard to remove. Make sure you cover everything surrounding your roof to avoid this issue.

These are the main two steps for removing mold and algae at home. Although it seems like a simple task, it can become quite difficult without proper safety standards.

Avoid future Mold and Algae Growth

remove mold

Well, this treatment will help you eliminate the mold and algae from building up again. It is also important to note that the roof should be given this treatment every six to eight months to avoid mold.

This treatment if repeated can easily prevent new growth. You can also allow direct sunlight to hit the roof so that it dries up all the moisture that is present on the roof and makes your roof insensitive to new mold and algae growth.

Another important step you can take to avoid future mold growth is to remove leaves or other things that might retain moisture. You can also consult a professional for support and yearly maintenance checks.

What happens if treatment is not done?

Mold and algae removal might seem like a very minor problem among all the roofing problems, but mold damage can become a very big problem if not treated on time. This big problem can be a complete removal of your roof, changing it into a new one called roof replacement. Roof replacement is very costly, and most homeowners find it hard to manage their other yearly expenses. 

Therefore, the best way to avoid expensive roof repairs, replacements, and protect your investment is to have regular maintenance checks against mold.


When deciding whether to treat mold and algae yourself or consult a professional, you should always make an informed decision. We recommend consulting a professional who can guide you according to your property location and weather conditions in the region. Mold and Algae removal is also a crucial task, and we always suggest finding a reliable and the best company in the business. 

We at Evoli Roofing have been in this business for a long time. Consult us if you live in DC, Maryland, and Virginia. Evoli Roofing ensures it provides the correct information to people worldwide and the best services in town. Having a team of professionals who have been in the industry for a long time. Evoli Roofing is the best in the business, and it is committed to the best quality and safety. We are always available on a call for consultation. Fill out the Contact Us form now and get the best roofing services. 



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