Sealants are the first line of defence against water ingress and air leakage in building envelopes. Over time, exposure to UV radiation, temperature fluctuations, and building movement causes them to harden, shrink, or lose adhesion. Once a joint fails, water penetration accelerates damage to internal finishes, reinforcement steel, and structural elements.

Our joint remediation service ensures your building’s weatherproofing is fully restored and compliant with AS 4020 and AS/NZS 4586 requirements for durability and safety.

Step-by-Step Process

1. Condition Assessment & Testing:
   • Inspect all sealant joints for adhesion failure, cracking, and loss of elasticity.
   • Perform adhesion pull tests where necessary to determine bond strength.
   • Identify underlying movement issues that may have contributed to failure.
2. Safe Removal of Existing Sealant:
   • Old sealant is cut and removed without damaging adjacent substrates.
   • All joint faces are mechanically cleaned to remove dirt, debris, and residues.
3. Joint Preparation:
   • Apply primer to joint faces to improve adhesion of the new sealant.
   • Install a backing rod where required to control joint depth and shape.
4. Installation of New Sealant:
   • High-performance low-modulus silicone, polyurethane, or hybrid sealants are applied, selected based on building movement and substrate type.
   • Sealant is tooled to ensure smooth finish and complete adhesion to joint sides.
5. Quality Checks & Protection:
   • Verify that sealant profile meets design specifications.
   • Apply temporary protection where required until sealant fully cures.

Why Our Joint Remediation is Different

• Movement Compatibility: We select sealants with the correct elongation capability for each joint type, preventing premature failure.
• Integrated Waterproofing: Where joints are part of a larger remediation project, we integrate sealant replacement with façade coatings, balcony waterproofing, or glazing upgrades.
• Long-Term Durability: All sealants are UV-resistant, weather-tolerant, and rated for high-movement applications, ensuring a service life of 15–25 years under normal conditions.

Failed sealants may seem like a small defect, but they are one of the leading causes of water ingress in Australian buildings. Left untreated, they can result in concrete spalling, internal mould growth, and costly litigation from water damage claims. By replacing them with a carefully specified, high-performance system, we ensure your building remains watertight, energy-efficient, and visually flawless 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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