How to Remove Moss From Your Roof

Posted on by Protech Roofing Team

On the face of it, moss growing on your roof isn’t the end of the world. It doesn’t appear to be doing any harm and, in some ways, it can add a bit of natural character to the tiles. In reality, though, moss can cause a fair amount of damage to your roof if left to grow untamed and, if you’re particularly unlucky, you might need a new roof.

So, to help you avoid this eventuality, the team at Protech Roofing are here to provide some solutions to your moss problem. We’ll tell you why it grows, the damage it can cause, and how to remove it once it has grown. Armed with this knowledge, you’ll never have a moss problem again!

Why does moss grow?

There are various reasons why moss might grow on your roof, one of the main ones being a cool shady climate. This is largely why moss is so prevalent in a place like England, where cool conditions are commonplace. However, another factor is the positioning of your roof. If your roof sits in such a way that it remains shaded throughout the day, there is a much higher chance that moss will grow on it.

Moist environments are also a huge catalyst for moss growth – again, something that England is known for – and when combined with a cool climate can spell disaster for your roof. Moss will grow rapidly in these conditions, so it’s certainly an idea to make sure that it’s combatted early!

What damage can it cause?

There are two key ways in which moss can cause damage to your roof. Firstly, when moss grows it locks moisture into the surface of the roof. The problem here, being that this moisture will speed up the wear on the roof tiles considerably and, in freezing climates, will lead to cracking and further wear.

Secondly, when the moss begins to grow out of control, the plant itself will get under the tiles and prise them open, causing irreversible damage to the fabric of the roof. It’s certainly better to avoid tiles if possible, as it is much more susceptible to this sort problem.

How to remove it once it has grown

There are also two main products with which to kill moss once it has grown, these being liquids and powders.

Powders are applied by climbing onto the roof and sprinkling over the affected area, preferably in parallel lines flush with your roof’s length. A generous amount of powder is needed to work, however, once rain begins to fall and the powder meets the tiles, the moss should begin to clear up. The only problem with powder, though, is that it may leave white streaks on your roof that need washing away.

It’s worth adding here, though, that we don’t recommend attempting to climb onto your roof is dangerous and should be done by a professional, ideally.

Liquids, on the other hand, are easier to apply in that they can be attached to a hose and sprayed onto the roof from the ground; no ladders necessary. What’s more, with liquid moss killer you should get a more even coverage of the affected area. The only real problem with liquid killers is they tend to be more expensive, but given the obvious pros – liquid moss killers get our seal of approval!

If you’re searching for expert roofing contractors in the Leeds area, look no further than Protech Roofing. We have over 25 years of experience providing and installing top quality roofs for commercial, domestic and industrial clients alike. Respectable and professional, we can be trusted to offer roofing surveys and assessments to find the right solutions for our customers. For more information, simply get in touch today.

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