Moss removal from the roof – why is it important?

Green moss cover is beautiful, but it's destructive to a roof. Moss erodes the coating on the tile, which is designed to prevent moisture from being absorbed into the porous tile. If moss is not removed regularly, the lifespan of a tile or felt roof will be significantly shortened, by as much as 10–20 years.

We offer an efficient and professional moss removal service for both felt and tile roofs.

How does moss damage a roof?

  • Moss acts like a sponge, keeping the surface of the substrate constantly moist

  • When it's freezing, moisture expands and frost weathering begins.

  • When the brick coating deteriorates, moisture can be absorbed into the brick.

  • Moss often settles in the seams of bricks and felt roofing, widening them, allowing moisture to enter the roof space.

Especially shaded roof surfaces are prone to moss growth. Leaves, needles, and dirt form an ideal growing medium for moss. Therefore, it is good to clean the roof of debris regularly, for example in spring and autumn.

I saw Kourulle.com remove moss from the roof

Professional moss removal from a roof is an effective and safe process:

  1. Mechanical cleaningThe mortar is gently removed without damaging the brick.

  2. BlowThe gutters and downspouts are completely cleared of debris using powerful blowers.

  3. Chemical treatment Destroys roots and prevents moss from regrowing.

  4. Gutter cleaning and tidying up the surroundings: We make sure that moss doesn't get stuck in the gutters and on the yard.

  5. If there are broken tiles on the roof, we will replace them or patch them with tile sealant.

The work usually takes 1-2 days. The end result is a clean and beautiful roof that will remain in good condition for years. Roof cleaning is recommended approximately every 4-5 years, and sometimes the treatment is sufficient for up to 10 years.

Spring is the best time to start maintenance work when the temperature rises above +5 °C. Roofs are usually cleaned from April to May and from October to November.

While the roof is being cleaned, it's wise to check the condition and waterproofing of the roofing material in other ways as well. We also offer various sealing services, such as

  • Gasket installation

  • Installation of special sealants for leak points

  • Penetration sealing

  • Roof and underlayment repair work.

How much does moss removal from a roof cost?

Moss removal from the roof costs around 7–15 euros per square meter depending on the size of the roof and the amount of moss. For detached houses, the price is often €1,000–€3,000 in between.

It is possible to get a household deduction for the work.

See more price examples from our article

Can moss be removed from a roof by yourself?

Cleaning moss from a roof can also be done yourself, but the result won't be as long-lasting as when done by a professional.

Moss removers available at hardware stores are milder, so moss may return within a few years. Additionally, the success of the cleaning depends on how well the moss roots and spores are removed.

Please note:

  • Do not use a pressure washer at high pressure, as it can damage the coating and, in the worst case, cause moisture damage to the roof structure!  
  • Walk carefully on the roof so the tiles don't break. 
  • Always use appropriate safety equipment. 
  • Follow the chemical usage instructions carefully.

Up to 6 months payment period

Get a credit decision for moss removal, conveniently through OP financing.

Why choose Kourulle.com?

We have powerful and roof-friendly tools and proper fall protection equipment at our disposal. Additionally, our professionals have extensive experience in handling roofs of various ages. We operate widely in Uusimaa, Pirkanmaa, Southwest Finland, Kanta-Häme, and the areas of Oulu, Jyväskylä, Lahti, and Kokkola.

Regular maintenance of a tile roof is an investment that pays for itself through a longer roof lifespan. Neglecting maintenance can cause extensive moisture damage and expensive renovations to the entire attic.

Frequently Asked Questions

Moss can absorb moisture and cause the roof's surface material to erode, as well as increase water intrusion into the roof's structure, which can lead to leaks and damage. Regular moss removal helps keep the roof in good condition.

The need for moss removal depends on the roof's location and material, but generally, an inspection and possible removal are recommended every 4-8 years.

We use environmentally friendly and safe methods, such as mechanical brushing and special moss removers that prevent moss regrowth.

Moss removal can be done yourself, but safe roof treatment and effective moss removal require professional expertise and specialized equipment to prevent roof damage and ensure thorough moss removal.

Yes, regularly removing moss will extend the life of your roof, as it prevents moisture buildup and the erosion of the roof's surface material.

The duration of the work depends on the size of the roof and the amount of moss, but moss removal usually takes anywhere from one to several days. If necessary, we’ll carry out the work in several stages to ensure the best possible result.

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