ChemXpert NI Roof Cleaner

Restore the appearance of your roof with ChemXpert NI Roof Cleaner, a professional-strength exterior cleaning concentrate developed to tackle algae, fungi, mildew, lichen and other forms of organic contamination commonly found on roof surfaces.

Our advanced formula penetrates deep into the affected area, helping to improve the appearance of roof tiles while reducing the return of unwanted growth. Suitable for both domestic and commercial applications, ChemXpert NI Roof Cleaner delivers professional results without the need for harsh acidic or bleaching agents.

Designed for use by exterior cleaning specialists, this powerful formula provides excellent coverage and long-lasting results when applied correctly.

Suitable for use on

✔ Concrete roof tiles

✔ Slate roofs

✔ Clay roof tiles

✔ Fibre cement roofing

✔ Agricultural buildings

✔ Commercial properties

✔ Garages and outbuildings

✔ Walls and masonry

Why choose ChemXpert NI Roof Cleaner?

• Professional-strength concentrated formula
• Acid-free formulation
• Bleach-free formulation
• Helps tackle algae, mildew, fungi and lichen
• Excellent coverage rates
• Suitable for residential, commercial and agricultural applications
• Long-lasting results
• Easy-to-use formula
• Suitable for regular maintenance treatments

Recommended dilution

1 part Roof Cleaner to 10 parts water (1:10).

Always test the product on a small area before full application.

Directions for use

Spray application

1. Dilute the product according to the recommended ratio.
2. Apply the solution evenly using a low-pressure sprayer.
3. Ensure complete coverage across the roof surface.
4. Leave the product to work naturally.
5. Do not rinse after application.

Water-fed pole application

1. Apply the diluted solution using a water-fed pole or soft-bristled brush.
2. Cover the entire affected area evenly.
3. Allow the treatment to work over the following days and weeks.

Important information

• Apply only when dry weather is expected for at least 6–12 hours after application.
• Results are not immediate and will gradually become visible over time.
• Heavily contaminated areas may require additional applications.
• Avoid application during periods of heavy rain, strong winds or freezing temperatures.
• Always wear suitable personal protective equipment (PPE).

Available sizes

• 5 litres
• 20 litres
• 205-litre drum
• 1000-litre IBC

Ideal for

• Roof cleaning specialists
• Exterior cleaning contractors
• Softwashing companies
• Property maintenance businesses
• Agricultural contractors
• Homeowners

Safety information

H302: Harmful if swallowed.

H314: Causes severe skin burns and eye damage.

H318: Causes serious eye damage.

H400: Very toxic to aquatic life.

H410: Very toxic to aquatic life with long-lasting effects.

Always follow the instructions provided on the label and wear suitable personal protective equipment when handling concentrated products.

Important notice

This product is supplied as a professional exterior cleaning concentrate and is not sold as a biocidal product. Its intended use is as a professional cleaning solution.

ChemXpert NI Roof Cleaner – professional-strength cleaning power for cleaner, brighter roofs.