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Podium & Roof Deck Waterproofing
High-performance waterproofing systems for podium slabs, rooftop terraces, and communal open spaces to protect against water ingress, thermal movement, and long-term weather exposure.

Podium decks and roof slabs are among the highest-risk areas for water ingress in multi-storey buildings. These horizontal surfaces are constantly exposed to rain, UV, thermal expansion, and heavy foot traffic. When waterproofing fails, water penetrates into the occupied spaces below, causing structural deterioration, corrosion of reinforcement, and costly tenant disruptions.

At Atomic Projects, our podium and roof waterproofing systems are engineered for longevity, flexibility, and complete watertightness. We tailor each system to the building’s use — whether it’s a landscaped podium, a tiled rooftop terrace, or a trafficable waterproofing surface.

Our Podium & Roof Waterproofing Process

  1. Condition Assessment
    • Inspect existing waterproofing layers for cracks, blisters, and adhesion failure.
    • Check for signs of water ingress below the slab, including staining, efflorescence, and structural spalling.
  2. Surface Preparation
    • Remove all existing finishes, coatings, and debris.
    • Repair concrete defects and re-profile falls to ensure water drains to outlets.
  3. Drainage & Detailing
    • Upgrade or replace drainage outlets and install puddle flanges.
    • Reinforce high-movement joints and perimeters with bond breaker tape or fabric reinforcement.
  4. Membrane Installation
    • Apply a multi-layer waterproofing system — liquid-applied or sheet membrane — suited to the site conditions.
    • Ensure correct dry film thickness, curing times, and protection against UV exposure.
  5. Protection Layers
    • Install separation sheets, drainage cell, or insulation boards before installing the final surface finish.
    • For landscaped podiums, fit geotextile fabric and soil-specific drainage profiles.
  6. Finishes & Quality Control
    • Coordinate with tilers, pavers, or landscape contractors to ensure finishes do not damage the membrane.
    • Perform flood testing to verify performance before handover.

Common Podium & Roof Waterproofing Failures We Repair

  • Inadequate membrane thickness or poor curing.
  • Blocked or insufficient drainage outlets.
  • Membranes punctured during installation of finishes.
  • Incorrect joint detailing around perimeters and penetrations.
  • Poor fall gradients leading to ponding water.

Why Atomic Projects for Podium & Roof Waterproofing

  • System-Specific Expertise: We match the membrane system to the site’s traffic, UV exposure, and expected movement.
  • End-to-End Management: From demolition to finished surface, we handle the entire process.
  • Proven Durability: Long-term solutions backed by strict QA and compliance with AS4654.2.
  • Minimal Disruption: Staged works for live environments to keep common areas accessible.

A failed podium or roof membrane can result in millions in rectification costs. Our systems are built to outlast standard warranties, ensuring the spaces above stay functional and the structures below remain protected for decades.

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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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