Can moss damage a roof? Yes it can - but we can fix it

Can moss damage a roof?

Yes, moss can damage a roof, especially if left untreated over time. Here’s how moss affects different types of roofing materials and what damage it can cause:

1. Retains Moisture

Moss absorbs and holds onto moisture, creating a damp environment on the roof. This can lead to:

Wood Rot: On wood or shingle roofs, constant moisture can cause the material to rot, weaken, and deteriorate.
Water Damage: For tile or slate roofs, moss can lift the tiles, allowing water to seep underneath. This can damage the roof underlay and eventually lead to leaks in the roof.

2. Damages Roofing Materials

Moss growth can break down the roofing materials over time:

Shingles and Tiles: Moss can creep between shingles and tiles, lifting and loosening them, which makes the roof more vulnerable to wind and weather damage.
Metal Components: Moisture trapped by moss can lead to rust and corrosion on metal flashing, nails, and other metal components of the roof.

3. Increases Weight on the Roof

Moss growth can add unnecessary weight to a roof, which, especially during wet seasons, can cause structural stress and lead to sagging or even partial collapse in severe cases.

4. Encourages Algae and Fungus Growth

Moss creates a habitat for other organisms like algae and fungi, which can further stain and deteriorate the roof. Algae can also cause unsightly black streaks and accelerate wear on roofing materials.

5. Reduces Roof Lifespan

Overall, moss can shorten the lifespan of a roof by speeding up material deterioration, creating leaks, and adding unnecessary weight. Regular removal and preventive measures, like trimming overhanging branches and ensuring proper drainage, can protect the roof from moss damage.

If moss has taken root on a roof, it’s best to have a professional inspect it.

AJ Roofing can help as we can remove the moss, assess for damage, and recommend long-term preventive solutions with our Roof Moss Removal service.

Give us a call on 01243 555558 if you have any questions.