Fibre-cement shingles – moss or lichen
Listed under: concrete and cement, fibre-cement, Roof, cladding, moisture, roof cladding, fibre-cement shingles
Cause
Insufficient cleaning
Repair
- clean roof using a solution of 1 part household bleach to 4 parts water and brush with a soft broom. Do not waterblast as this can force water up between the shingles.
Cause
The roof remains damp due to overhanging branches
Repair
- clean roof using a solution of 1 part household bleach to 4 parts water and brush with a soft broom. Do not waterblast as this can force water up between the shingles.
- cut back overhanging branches