Moss is a revolting weed that grows in damp and shady areas in our homes. And if it starts growing on the roof, it can create problems in gutters and tiles. It can create an obstruction in water drainage and this can lead to bigger problems. Ideally, moss should be prevented before it occurs. But if moss has already started, you should address this problem as soon as you can to stop it from worsening. Let’s have a look at some preventive measures and how to remove moss from a roof.

What is moss?

Moss is a plant that grows in mats or clumps and prefers shady and damp areas. Since it doesn’t have a root system, it needs moisture for its growth. Its growth is promoted in shady areas. It is also promoted by acidic environments. It has an ideal growing condition between pH levels 5.0 and 6.0.

Here are some ways to remove moss from a roof permanently

  1. Remove the shade from where moss is growing. It will not be able to grow in direct and strong sunlight.
  2. Give it a basic environment. Since moss thrives in lightly acidic environment, it will perish in either basic or extremely acidic surrounding.
  3. Dry the environment since moss cannot thrive without moisture.
Removing shade and moisture can be tricky for people who have shady roofs. For example, if the shade from a tree is covering your roof, there isn’t much you can do. You might want to cut off a few extra branches of the tree to allow some sunlight to reach your roof but that is not always possible. If both these options (removing shade or making the environment dry) don’t work for you, then the only remaining option is to use a roof cleaning product that changes the pH level on your roof.

Making it acidic

If you lower the pH level of your roof below 4, it will create an acidic environment where moss will not survive. However, since acid can erode some surfaces, make sure you discuss things with an expert before using a product. Some products need to be mixed with water before applying. Diluting them will reduce the chances of corrosion. Some home-based products that you can use on moss are lemon juice, vinegar (white or apple cider), tomato juice, and orange juice.

Making it basic

By raising the pH level of your roof over 7, you can give it a basic nature that will not let moss thrive. There are some products that can help you raise the pH level. You can also use home-based products to kill moss. Some of the basic products available at home are baking powder, salt, baking soda, soap, ammonia, and bleach. However, make sure you don’t mix ammonia with bleach.

Keep it safe

When you see moss on your roof, don’t just use any old technique or product as they can actually harm your roof more than the moss. Here are some tips to keep in mind while cleaning moss from the roof. Do not pressure wash If you direct high-pressure water onto your roof, you may remove the asphalt granules that protect the shingles. You could also force water up and under the tiles or shingles. Don’t risk damaging your roof by attempting to remove moss yourself using a pressure washer. Use only a trained professional to ensure the job is done correctly, safely and thoroughly. Do not use strong acids As discussed above, strong acids can harm the tiles and shingles. Even if you use a mild acid but let it sit for long, it may harm your roof. Do not scrape When you scrape your roof, you can crack or break the tiles or shingles. This will not only increase the costs but can cause a lot of headaches as well.

Feeling stuck?

If you don’t know what to do, you can get professional help. There are roofing experts who will assess your roofing material before working on it. They will decide the right type of product for your roof and whether it will be better to use acidic or basic solutions. They have the right equipment to remove moss from a roof. They’ll also make sure that your shingles aren’t affected by the chemicals they use.

Don’t wait to remove moss from a roof

Moss on the roof doesn’t just look bad, but as it thickens up, it can raise your roof tiles. As tiles rise above their correct level, they will let water seep in. Raised tiles also act as wind barriers in heavy winds and can break off easily. Apart from this, moss can collect debris that causes water buildup that can eventually rot the roof. Don’t wait for too long – consult a professional right now and get rid of the unsightly and repulsive moss on your roof.