What Is The Best Time Of Year To Remove Moss From Roof?

What Is The Best Time Of Year To Remove Moss From Roof? Moss can be a real nuisance when it grows on your roof. Not only can it make your roof look ugly, but it can also cause damage and increase the risk of leaks.

Moss will usually build up in the wettest areas first, like the gutters! It’s these spots you need to clean as well as the roof so no moss Rhizoids (spores) can survive. If just one spore is left behind it can start the whole process all over again!

Rhizoids are basically multi-cell anchoring structures (spores) that collect nutrients and water through the moss’s external liverworts leaves and if they break away they can spread and multiply very easily.

Removing moss from your roof is not as easy as it sounds! Plus, with most roofs being upright vertical it can be challenging and very risky especially if the conditions are cold and wet.

So what is the best time of year to remove moss from the roof?

What Is The Best Time Of Year To Remove Moss From Roof?

The best time of year to remove moss from a roof is in the springtime! This is when moss is most active, absorbing water and sunlight, which means they will absorb moss killer sprays and other chemicals, making them far more effective.

Winter would be the worst time of year to remove moss from your roof simply because of the weather conditions and your safety!

You can, of course, remove the moss in the summer, but the problem here is moss slows its growth in hot conditions and basically goes dormant. This means things like chemical sprays won’t be as effective.

If you live in an area that has a cold climate, it’s best to wait until the weather warms up slightly before attempting to remove the moss.

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How To Remove Moss

What Happens If You Leave Moss To Grow On Your Roof?

Most roofs, regardless of types and materials, will experience lichen or moss growth, and a small patch of growth is normally not an issue. However, once it develops into a bigger patch on your roof, then this is where it can be a huge issue.

Moss thrives in shady, damp conditions – and your roof can provide the perfect environment for it to grow.

It works like a sponge, which absorbs a lot of water and can lead to your roof always being wet and if the levels of moisture go underneath the tiles, it can decay the components of your roof.

Moss can also attract insects and birds that will break up the moss to be used for their nests which will scatter the moss to other parts on the roof causing it to spread.

Ultimately leaving moss on your roof can cause all kinds of issues: like wood-decaying and drainage points obstruction, premature aging, and damage to the tiles, causing water leaks that can lead to expensive repairs!

Once you noticed this issue, you need to clear it straight away as it can potentially result in parts of the drainage and roof tiles needing expensive replacement.

Moss Growth Can Cause The Following Problems:

  • Hold moisture underneath the tiles
  • Can obstruct and block drainage points
  • Can cause damage to the tiles
  • Can cause the roofing materials to rot

The good news is there are some simple and easy ways you can follow to avoid moss from multiplying on your roofing. However, if you don’t feel comfortable doing it yourself then you should contact an expert.

If you want to remove moss permanently, it will take some time and effort but it’s possible! Moss must be eliminated from the roof quickly, most especially if it is covering a considerable part of the roofing.

It’s also a good idea to keep away from pressure washing the roof to eliminate moss because this can cause further damage and result in the drenching of the roof interior.

Tips For Removing Moss From Your Roof

So as you know now, moss can cause serious damage to your roof and shorten its life. Fortunately, there are ways to remove moss from your roof without damaging the roofing materials.

If you’ve noticed moss growing on your roof, don’t worry – there are ways to get rid of it. Below are some tips on how to remove moss from your roof safely and effectively.

Steps For Eliminating Moss From Your Roof:

  1. Cover the ground around your home with a plastic tarp to avoid damaging your plants
  2. Then you’ll need is a ladder that’s tall enough to reach the top of your roof.
  3. Once you’re on top of the roof spray the entire roof with your chosen moss killer.
  4. Next, grab an bristle brush so you can scrape at the mossy areas
  5. Then gently and mildly brush and scrap away the dead moss
  6. When the roof is completly clear rinse with using a garden hose

Depending on the type of moss killer you are using you may have to leave it for 15 minutes or a couple of hours this varies. It is vital to utilize the right protective gear if you have decided to use chemicals.

If you are unable to do the work yourself or believe it is too risky to you and your roof then hiring a professional and seasoned roofing expert to eliminate the moss will reduce and diminish the risk of harming the roof during the removal process.

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Tools You Should Avoid Using On Your Roof

Sad to say, there are many suggestions out there on how to remove moss from your roof. While these techniques might be reliable and effective at eliminating moss from your roof, they can also cause damage to your tiles.

It is also highly recommended not to try and eliminate the moss from your roof by…

High Pressure Water

This technique can be extremely effective “but” certainly powerful enough to damage or break the adhesive in your shingles and lift up the roof tiles.

Also, using a pressure washer on the roof can strip your asphalt shingles of the granule surface can affect the performance, and at the same time, destroy the color of your roof.

Any level of pressure washing can pose serious issues with your roofing, which include major leaks. So it’s best to avoid using a pressure washer or pressurized stream of water on the roof.

Using Harsh Chemicals

In some cases, a high concentration of bleach as well as other chemicals can permanently harm your shingles, which improves the chance of leaking. Sad to say, not all techniques available are proven to be safe, effective as well as reliable.

If you are in doubt about the effectiveness or safety of the removal method of moss you like to try, you can consult an expert roofer in your area. A handful of the roofer in your place where moss infections are common does concentrate on eliminating moss.

They might be able to carry out the job for you and, if not, might have suggestions on what your particular roof can gain from.

How To Prevent Moss from Growing Back On Your Roof?

Regular cleaning and maintenance are often enough to keep your roof in good condition and if you choose to clean the roof yourself be aware of the risks.

In case you are in doubt, it is always advisable to get the service of a reliable and trustworthy roofing company in your area that has the tools and experience in handling the job thoroughly and safely.

With regards to cleaning or eliminating moss on your roof, there is nothing easy and fast about it. It can be risky or dangerous, and you might risk the chance of harm and injury.

So, if you wish to clean the moss on your roof effectively and safely, then you surely need to have a good game plan with wise safety procedures.

The most important thing is that you have to take time as to rush in a roof cleaning can result in big issue. Why risk your safety in keeping your roof clean and tidy?

A smart suggestion is to look for a skilled and qualified roofing company. Make sure to hire a company with years of experience and use the best tools in cleaning the roof.

There are lots of service providers out there who know the best time of the year to clean moss on your roof.


So now you know what is the Best Time Of Year To Remove Moss From the Roof and how to remove the moss. It’s always best to keep your roof clean and free of moss.

As mentioned, leaving it to grow will cause problems and also weaken your roof which will lead to leaks which is the last thing you want especially in the winter.

Not only that, but remember moss is at its peak when the conditions are wet and although you can still clean your roof in the winter or summer you may find yourself cleaning your roof regularly.

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