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Roof Waterproofing & Membrane Systems
Install or replace high-performance roof membrane systems to protect structures from water ingress, UV damage, and thermal stress — extending the lifespan of both the roof and the building beneath.

Roofs are the primary defence against water ingress, yet they are also one of the most vulnerable parts of a building envelope. Over time, UV degradation, ponding water, failed joints, and thermal expansion break down protective layers. When waterproofing fails, damage can spread rapidly to insulation, ceiling systems, electrical infrastructure, and structural elements.

At Atomic Projects, our waterproofing works go beyond a quick patch job. We deliver complete system installations engineered for the specific roof type — whether metal, concrete, timber deck, or composite — with a focus on seamless coverage, movement accommodation, and long-term adhesion.

Our Roof Waterproofing Process

  1. Detailed Roof Survey
    • Identify membrane failures, substrate deterioration, and drainage issues.
    • Pinpoint thermal bridging, condensation points, and potential leak paths.
  2. Surface Preparation
    • Remove old membranes, rust, and contaminants to ensure adhesion.
    • Repair cracks, delaminations, and corroded sections before applying new systems.
  3. System Selection
    • Liquid-Applied Membranes (polyurethane, acrylic, or PMMA) for seamless protection.
    • Torch-On or Sheet Membranes for high-stress environments or high-movement roofs.
    • Hybrid Systems combining sheet reinforcement with liquid topcoats for maximum durability.
  4. Detailing & Joint Treatment
    • Seal all penetrations, gutters, parapets, and expansion joints to prevent localised leaks.
    • Install termination bars and mechanical fixings where required for wind uplift resistance.
  5. Full Membrane Installation
    • Apply systems to manufacturer specifications for correct thickness, curing, and overlap.
    • Ensure continuous coverage to eliminate weak points.
  6. Drainage & Ponding Prevention
    • Improve falls and add new drainage points if ponding water is present.
    • Integrate sumps, scuppers, or overflow outlets into membrane system.
  7. Final QA & Certification
    • Conduct electronic leak detection or flood testing to verify watertightness.
    • Provide warranty documentation and maintenance plan.

When to Upgrade Roof Waterproofing

  • Persistent leaks or damp patches on ceilings.
  • Visible cracks, bubbles, or splits in existing membranes.
  • Ponding water after rain.
  • UV-chalked or brittle membrane surfaces.
  • Structural repairs requiring new roof coverings.

Why Atomic Projects for Roof Waterproofing

  • System Agnostic: We specify the best-fit system for your roof, not just one brand.
  • Commercial & Residential Expertise: Proven in high-rise, strata, and heritage applications.
  • Precision Detailing: We focus on junctions, penetrations, and terminations where most leaks start.
  • Warranty Confidence: All works installed to meet or exceed AS 4654.2 and manufacturer warranties.

A roof membrane system is not just a protective layer — it’s a critical investment in the longevity and value of your building. We deliver solutions that last, even in the most punishing Australian conditions.

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If you’re ready to get started, we're ready to help.

Take the next step and let’s build something that lasts.

 

📞 Call Us: 0410 515 509

✉️ Email Us: hello@atomicprojects.com.au

 

— Ben Tran, General Manager, Atomic Projects

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