Remedial Waterproofing Works – Waterproofing Membrane Replacement

Project Overview
## Project Overview Quin Projects was engaged to undertake comprehensive remedial waterproofing works to address identified waterproofing failures and deterioration within the existing membrane system. The project was designed to restore the waterproofing integrity of the area, prevent ongoing water ingress, and ensure long-term protection of the underlying structure. Waterproofing failures can lead to significant structural deterioration, safety concerns, and costly future repairs if not addressed promptly. This project focused on the complete removal of the defective waterproofing system and the installation of a new compliant membrane solution in accordance with current Australian Standards. --- ## Scope of Demolition and Removal Works The initial stage of the project involved the careful demolition and removal of approximately **200m² of the existing waterproofing membrane system**. This process included: - Removal of all deteriorated waterproofing membranes - Removal of failed coatings and protective finishes - Elimination of aged adhesives and sealants - Removal of contaminated or unsuitable substrate materials where required - Disposal of all demolition waste in accordance with site and environmental requirements The objective of these works was to expose the substrate and achieve an acceptable surface preparation standard suitable for the installation of a new waterproofing system. --- ## Detailed Substrate Inspection and Preparation Following demolition, a comprehensive inspection of the exposed substrate was undertaken to identify any defects, deterioration, or conditions that could compromise the performance of the new waterproofing system. Preparation works included: - Mechanical grinding of the substrate surface - Removal of contaminants and loose materials - Thorough cleaning of all prepared surfaces - Identification and treatment of cracks and substrate defects - Rectification of unsound or deteriorated areas - Installation of appropriate bond breakers - Formation of fillets at critical junctions - Application of suitable primer systems where required All preparation activities were completed in accordance with relevant Australian Standards and manufacturer recommendations to ensure optimal membrane adhesion and performance. --- ## Installation of the New Waterproofing Membrane System Upon completion of substrate remediation, Quin Projects supplied and installed a new compliant waterproofing membrane system designed to provide a durable, watertight, and long-lasting barrier suitable for the intended service conditions. The membrane system was installed strictly in accordance with: - **AS 4654.2 – Waterproofing Membranes for External Above-Ground Use** - Relevant **National Construction Code (NCC)** requirements - Manufacturer technical specifications and installation guidelines Particular attention was given to all critical waterproofing details, including: - Membrane terminations - Upturns and edge detailing - Service penetrations - Construction and movement joints - Internal and external corners - Transition interfaces These details were completed to ensure continuity of the waterproofing system and maximise long-term performance. --- ## Quality Assurance and Compliance To verify the integrity and compliance of the installed waterproofing system, a series of quality assurance procedures were undertaken throughout the project. Quality control measures included: - Membrane thickness testing - Adhesion verification testing - Inspection of detailing and terminations - Flood testing where applicable - Compliance inspections against project specifications These procedures ensured the waterproofing system met performance requirements and achieved the necessary compliance standards for long-term durability and water resistance. --- ## Project Outcome The successful completion of these remedial waterproofing works restored the waterproofing performance of the affected area and provided a durable solution designed to protect the structure from future water ingress. Through careful demolition, detailed substrate preparation, installation of a compliant waterproofing membrane system, and rigorous quality assurance processes, Quin Projects delivered a high-quality waterproofing solution that meets current Australian Standards and industry best practices. --- ## Need Remedial Waterproofing Experts? If your property is experiencing waterproofing failures, water ingress, membrane deterioration, or balcony and podium waterproofing issues, Quin Projects can provide expert assessment, remediation, and compliant waterproofing solutions. **Contact Quin Projects today to discuss your remedial waterproofing requirements and arrange a professional site assessment.**
Project Details
Location
Sydney - Cronulla
Completed
2026
Duration
1 month
Team Size
7
Service
Rooftop Waterproofing and Building Painting
Key Features & Deliverables
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