Commercial Roofing
Your first step to NetZero with up to 90% heat-reflective coatings

Waterproof Your Commercial Roof
Is your roof rusty, leaking, or both? Don't replace it. Seal it with the RTT system for as little as a third of the cost of a replacement. We have manufactured our products in Australia since 2008: a top-quality waterproofing sealant and a NetZero Coating UV-protection topcoat membrane, available in any Colorbond colour.
Our specialist applicators waterproof and restore commercial roofs, including box gutters.
TRUSTED BY
Benefits of going NetZero
Why Is Your Roof Overheating?
☀️ Sun Exposure:
Prolonged exposure to harsh sunlight causes your roof to absorb and retain heat, warming the entire structure from the top down.
🧱 Outdated Protection:
Traditional coatings and aging insulation fail to reflect solar radiation, forcing your HVAC system to work harder just to keep up.
💸 Higher Energy Bills:
That excess heat doesn't just make you uncomfortable—it drives up your power costs and carbon footprint.




Commercial Roof Restoration for Concrete, Metal and Matt Tile Roofs
OUR TEAM WILL INSPECT YOUR ROOF FREE OF CHARGE AND PROVIDE A TAILORED REPORT AND QUOTE
Why seal your commercial roof instead of replacing it:
- Saves tens of thousands of dollars.
- Heat reflection and UV protection from our NetZero Coating.
- No costly building inspectors.
- You don't need to shut down your business. We apply the system while you keep trading.
- All leaks sealed, with a minimum 10-year warranty and options for 15+ years.
- Lower cooling costs. The topcoat reflects up to 90% of the sun's heat, so the building stays cooler.
Up to 40% off Commercial Roofing Projects
We fix commercial roof leaks, repair and maintain roofs, restore box gutters and carry out full roof restorations. Our waterproofing and UV-protection membranes suit metal and concrete commercial roofs.
CONTACT US TODAY 1300 636 272
COMMERCIAL ROOF LEAKS & ROOF REPAIRS
Most roofing specialists charge around $1,500 + GST for a small repair, and the price climbs considerably for bigger jobs. RTT Sealant charges 20% less, so the larger the job, the more you keep in your pocket.
Commercial Box Gutters
The average price is around $250–$300 + GST per linear metre. RTT Sealant charges $150–$200 + GST per linear metre, up to 40% less.
Commercial Metal Roof Restoration
Re-roofing costs $200–$300 + GST per m², and vacating the premises while it's done can cost tens of thousands of dollars in lost income. Our price can be as low as $80 + GST per m², and we finish within 3 weeks. If your roof is rusty, cracked, has holes or has loose screws in the sheets, our waterproofing system can seal it, whether it's on a business, hotel, shopping centre, government building or airport. Our own experienced specialists apply the products, and we have a long-standing reputation in the industry.
Commercial Concrete Roof Restoration
Valued at over $200 + GST per m², our current price is only $140 + GST per m². A concrete roof needs a different approach from a metal roof. The prep work requires a specialist to repair cracks, joins and holes before the primer and our UV-protection topcoat go on.












