Unit 3/1-3 Whyalla Place Prestons NSW 2170
Level 1, 1 Burelli Street, Wollongong NSW 2500
Level 4 & 5, 15 Moore Street, Canberra ACT 2601
180 Lonsdale Street, Melbourne VIC 3000
With skilled waterproofers and tradies in house, Danrae Group can quickly – and seamlessly – solve any waterproofing issues. That’s no reason to avoid taking immediate action, however.
A smooth process doesn’t always mean it’s a basic process, and the longer you put off a fix, the larger the problem is likely to be. When we discovered concrete spalling in a Rose Bay apartment block, we performed a full intrusive investigation and implemented a permanent waterproofing plan.
The owner of the Rose Bay apartment block contacted Danrae Group after discovering a damaged ceiling. Our first step is to perform a full intrusive investigation, and what we found was extensive concrete spalling and potentially concrete cancer.
Concrete spalling and concrete cancer are consecutive stages of the same issue, and they occur when water or air seeps into concrete and affects the reinforcing steel that supports concrete structures. It causes the steel to rust and expand, cracking the surrounding concrete and letting even more water and air in – which accelerates the damage.
The treatment process may involve removing the affected concrete, identifying the extent of damaged steel, cleaning or replacing the steel, building up the missing concrete area with primers and other materials, adding a protective coating – and then laying a waterproofing membrane. For this project we used Sika products.
The process above focused on concrete repair and is just one stage of our intrusive investigation, design, remediation, waterproofing and preventative maintenance solutions. In between, we also look after everything from street closures to stakeholder communication.
When people find a large leak, they generally seek immediate help. Unfortunately, other signs of a problem don’t always trigger action. Bubbling paint, rust stains and ceiling cracks may indicate concrete spalling. If left untreated it will develop into concrete cancer which can involve a much larger – and costlier – fix.
According to Ron Caruana, Founder and Project Manager with Danrae Group, knowing Danrae Group can fix any issue doesn’t mean you should leave it. “People do tend to ignore the warning signs. It’s common for many people to contact us only after it’s become a much bigger issue.”
Danrae Group has leading waterproofing expertise and provides full project management, so we can treat anything from a leaking planter box to major concrete cancer.
If you are seeing signs that might indicate a problem, don’t leave it too late. Contact us for fast-response and permanent waterproofing solutions. Read more about our waterproofing experts.
What to do when waterproofing fails. Learn about common defect causes, warranty periods in NSW, who’s liable, and how to get a proper diagnosis and remediation plan.
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A practical guide to Australian waterproofing standards including AS 4654.1, AS 4654.2, and AS 3740. Learn what they cover, when they apply, and why they matter for your project.
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