Cleaning roof tiles is one of the simplest ways to improve the look of your home and extend the life of your roofing. Yes, you can clean roof tiles yourself as long as you follow safe practices and use the right methods. Within the first few steps, you will notice that proper cleaning removes dirt, moss and stains that commonly build up in Australian climates, particularly in areas with humidity, coastal winds or heavy rainfall.
A clean roof not only looks better but also helps prevent long-term damage. Tile roofs, whether concrete or terracotta, are known for durability, but they still benefit from scheduled care. Here is a clear guide that helps you do the job confidently and safely.
Why Roof Tile Cleaning Matters
Roof tiles face constant exposure to sun, rain and airborne debris. Over time, this leads to:
✔︎ Moss and algae growth
✔︎ Dirt and leaf accumulation
✔︎ Stains from pollutants and bird droppings
✔︎ Reduced water flow to gutters
✔︎ Gradual tile wear
Regular cleaning helps tiles maintain their strength and reduces the chance of leaks or cracks. If you want professional guidance, the friendly team at Tomkat Roofing can help you with expert advice for your home.
Safety First Before You Begin
Working on a roof requires planning. Consider these safety points:
✔︎ Wear non-slip shoes
✔︎ Use a strong ladder placed on flat ground
✔︎ Avoid windy or rainy conditions
✔︎ Use a safety harness for steeper roofs
✔︎ Work with someone who can assist you from the ground up
If your roof is older or has damaged tiles, targeted care from specialists at Tomkat Roofing can keep the structure secure before cleaning starts.
Step-by-Step Guide to Cleaning Roof Tiles
1. Inspect the Roof
Start by checking for:
✔︎ Broken or cracked tiles
✔︎ Loose ridge caps
✔︎ Blocked gutters
✔︎ Excessive moss growth
Take note of any areas needing repairs. Cleaning without inspection may worsen weak spots.
2. Clear Loose Debris
Use a soft broom or leaf blower to remove:
✔︎ Twigs
✔︎ Leaves
✔︎ Dust
✔︎ Dry moss
Avoid aggressive scrubbing as it can scratch tile surfaces.
3. Prepare a Mild Cleaning Solution
A simple mix works best:
✔︎ Warm water
✔︎ Gentle detergent
✔︎ Optional: specialised roof cleaning solution labelled safe for your tile type
Avoid harsh chemicals or acidic products, as they can damage the glaze on terracotta tiles or weaken concrete tiles.
4. Apply the Solution
Using a garden sprayer or a low-pressure applicator:
✔︎ Start from the top and move downward
✔︎ Cover each section evenly
✔︎ Allow the solution to sit for around 15 to 20 minutes
Do not allow it to dry completely, especially under harsh sunlight.
5. Use Low-Pressure Washing
Low pressure is essential. High pressure can:
✔︎ Remove protective coatings
✔︎ Break tiles
✔︎ Force water under the roof surface
If using a pressure cleaner, set it to a gentle setting and keep the nozzle at a safe distance. Work slowly to remove dirt and leftover detergent.
6. Scrub Tough Spots
Stubborn stains or thick moss may need extra care. Use:
✔︎ A soft-bristle brush
✔︎ Circular brushing motion
✔︎ Mild cleaner only on the affected area
Avoid wire brushes that can cause surface erosion.
7. Rinse the Roof Thoroughly
Rinse with clean water, moving from the top of the roof down to the gutters. This prevents dirty water from running back over areas you already cleaned.
8. Clean the Gutters
Roof washing often pushes debris into the gutters. Clear them to maintain good water flow. Blocked gutters can lead to overflow that affects walls and foundations.
9. Allow the Roof to Dry
Let the tiles dry fully so you can assess:
✔︎ Any missed spots
✔︎ Areas requiring re-cleaning
✔︎ Tiles that may need maintenance
Drying also prepares the surface for any protective treatment.
10. Apply Tile Sealant (Optional but Useful)
A sealant helps tiles resist:
✔︎ Moisture
✔︎ Stains
✔︎ Algae growth
Terracotta and concrete tiles benefit from sealing, especially in regions with heavy rain or moisture.
How Often Should You Clean Roof Tiles in Australia?
Most Australian homes benefit from roof tile cleaning every one to two years. Homes near coastal regions or surrounded by trees may need more frequent cleaning to avoid buildup.
When to Call Professionals
You should consider professionals if:
✔︎ Your roof is steep or unsafe to walk on
✔︎ Tiles show signs of wear
✔︎ There is heavy moss or algae
✔︎ You want deep cleaning without risking tile damage
✔︎ Repairs might be needed before or after cleaning
At any time, you can reach out to Tomkat Roofing for safe, efficient and reliable roof tile cleaning support for your home.
Keep Your Roof in Top Shape
If you want your roof to look fresh while staying strong for years, the team at Tomkat Roofing is ready to help you get the results you want while protecting your home.
Whether it is tile cleaning, minor repairs or routine checks, Tomkat Roofing offers trusted roofing services carried out with care and attention.
Book Your Roof Tile Cleaning with Tomkat Roofing Today
Give your home the quality care it deserves. Contact Tomkat Roofing now to schedule professional roof tile cleaning and keep your tiles strong, clean, and long-lasting.
Frequently Asked Questions
Can I clean roof tiles myself?
Yes, you can clean them if your roof is safe to access and you use low-pressure washing and gentle detergents.
What is the safest way to clean roof tiles?
Low-pressure cleaning combined with a mild solution is the safest method. Avoid strong chemicals or harsh scrubbing.
Will high-pressure cleaning damage my tiles?
High pressure can harm protective coatings and crack tiles, so it is best to avoid it unless used by a skilled technician.
How do I remove moss from roof tiles?
Use a mild cleaner, let it sit for several minutes and rinse with low pressure. For thick growth, gentle brushing helps.
When should I call a professional?
You should call one if the roof is steep, tiles are fragile, or you are unsure about the cleaning process.
