Unison Joints expansion joints are engineered to protect car park structures by accommodating movement, absorbing stresses, and maintaining surface integrity.

Why Car Parks Need Premium Expansion Joints

Car parks differ from standard floor surfaces because they experience:

✔ Heavy wheel loads from cars, trucks, and service vehicles
✔ High-frequency traffic in all directions
✔ Exposure to rain, UV, oil, and chemicals
✔ Large surface areas with temperature variances

These conditions demand joints that don’t just fill gaps—but actively protect the structure. Built to absorb movement and resist load transfer, these joints provide: Excellent weather resistance for outdoor car parks Superior flexibility for temperature and structural movement High load capacity for vehicles and occasional heavy equipment Custom sizing for exact application Easy installation Seamless integration with concrete surfaces Optional sealants and profiles help Prevent Leaking to lower decks

The post Expansion Joints for Car Parks — Why Unison Joints Are the Smart Choice appeared first on Unison Joints High Performance Bespoke Coverplates.

Expansion joint systems are designed to accommodate movement.
Yet, failures still occur — and more often than not, the issue isn’t the product itself.

Understanding why expansion joints fail is critical for architects, engineers, and contractors who want long-term performance and compliance.

Movement Is Underestimated

Buildings are constantly moving — expanding, contracting, creeping, settling, and swaying. When an expansion joint system is not designed to handle actual site movement:

• Seals can tear
• Cover plates may buckle
• Concrete edges can crack

Accurate movement calculation is essential to avoid premature failure.

Waterproofing Is Not Properly Integrated

Water ingress is one of the most common causes of building damage. If waterproofing membranes and expansion joints are not coordinated:

• Leaks develop
• Corrosion begins
• Internal finishes deteriorate

A fully integrated waterproofing and joint system is essential for long-term durability.

Fire Rating Is Inadequate

Expansion joints create openings in fire-rated structures. If the fire-rated joint system:

• Does not match the slab’s fire rating, or
• Cannot accommodate full movement under fire conditions

…it compromises both compliance and safety.

The Wrong System Is Specified

Not all expansion joint systems are interchangeable. Different environments require different solutions:

• Car parks demand heavy-duty, trafficable systems
• Hospitals require hygienic, antimicrobial seals
• Podium decks need waterproof and UV-resistant systems
• Seismic joints must accommodate large, multidirectional movement

Specifying the wrong system leads to early failure

Poor Installation Practices

Even the best-designed expansion joint system will fail if installed incorrectly. Common installation issues include:

• Uneven joint gaps
• Over-tightened fixings
• Compressed or damaged fire barriers

Quality installation is just as important as design and product selection.

The Bottom Line

Expansion joints are critical building systems — not finishing details.

Successful performance depends on early coordination between:

• Structural design
• Waterproofing systems
• Fire compliance
• Architectural finishes

When treated as an afterthought, failures are inevitable. When prioritised early, expansion joint systems protect both the building — and your reputation — for decades.

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Partnering with JHG (John Holland Group) and Peddle Thorpe Architects, our team worked hand-in-hand to refine seismic coverplate systems for floors, internal walls, ceilings, and roofs. The goal was simple but critical: deliver expansion joint solutions that are seamless, fire-safe, water-resistant, and engineered to handle seismic movement.

Our collaborative approach meant every design decision was discussed, tested, and tailored to the hospital’s unique needs. Products supplied included:

• PyroTX I and PyroTX B seismic fireseals for maximum fire protection
• Unison Aquo H Hypalon glands and adhesives to secure water and movement sealing
• SiR seismic roof expansion joint covers, specifically designed for roof movement

Installation was executed flawlessly thanks to our trusted partners: Master Floors Group handled floor expansion joints, fireseals, and waterseals, while Wadsworth Contracting installed internal wall and ceiling systems.

This project wasn’t just about supplying products—it was about collaborating across disciplines to ensure the building performs safely, looks seamless, and meets the highest standards. At Unison, we see ourselves as part of the wider team, working together to solve challenges and create buildings that stand the test of time.

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The iconic Zayed Tennis Centre in Abu Dhabi is currently undergoing refurbishment, and we’re proud to be part of this important project. A key focus has been ensuring that all seating plates within the stadium are watertight and safe for pedestrian traffic—a critical factor for both the comfort and safety of visitors.

To achieve this, 900 linear metres of our Aquo-P expansion joint seal with Flextread topper have been installed vertically and horizontally by Repcrete UAE, the project’s expert installation contractors. This high-performance system provides a watertight barrier, a smooth, pedestrian-friendly surface, and slip-resistant protection thanks to the Flextread topper. Its flexibility allows the joints to accommodate structural movement while maintaining a long-lasting seal.

Working alongside Repcrete UAE, this project highlights our commitment to delivering reliable, innovative expansion joint solutions that keep stadiums and public spaces safe, durable, and ready for heavy use.

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1. Quality You Can Rely On: Australian manufacturing is held to some of the strictest standards in the world. Local production means tighter quality control, superior craftsmanship, and products that are built to perform and built to last.

2. Supporting Local Industry: Every purchase helps sustain Australian jobs, skills, and suppliers. By choosing local, you’re investing directly in the future of our communities and keeping specialist expertise right here at home.

3. Faster Lead Times & Reliable Supply: With manufacturing based in Australia, products can be delivered quickly and without the risks of overseas shipping delays. Local control also means greater flexibility when you need a custom or time-sensitive solution.

4. Designed for Australian Conditions No one understands the demands of our climate, regulations, and building standards better than local manufacturers. Products designed and tested in Australia are purpose-built for our environment.

5. Proven Compliance: Australian-made products are manufactured to meet national standards, codes, and regulations. This gives builders, architects, and certifiers peace of mind that projects will pass inspections and stand the test of time.

6. Accountability & Service: When you buy Australian-owned and made, you’re dealing directly with the manufacturer. That means responsive support, technical expertise, and a partner who stands behind every product.

The post Why Choose 100% Australian-Owned and Manufactured? appeared first on Unison Joints High Performance Bespoke Coverplates.

When we talk about quality, we mean more than just meeting expectations. We mean delivering products and experiences that are built to perform, built to last, and built to impress.

What Sets Unison Apart

• Australian Manufacturing
  Every product is proudly made in Brisbane with complete control from start to finish — guaranteeing consistency you can rely on.
• Unmatched Range
  From commercial spaces to iconic landmarks, our extensive product line is designed to meet diverse applications and project needs Worldwide.
• Architectural Style
  Performance meets design. Choose from a wide variety of finishes and colours to complement any environment.
• Delivery Ready
  Products arrive site-ready, assembled, carefully packaged to protect their integrity every step of the way.
• Standards You Can Trust
  Manufactured to meet strict industry regulations, making certification simple and stress-free.
• Expert Guidance & CAD Drawings supplied
  Our in office technical engineers ensure you specify the right product, the first time.
• Installation Guidance  
  We provide manuals and also happy to visit your site to assist.  Unison also have licenced preferred installation teams
• Built Around You
  Our team works with architects, designers, and builders to create bespoke products that balance functionality, compliance, and style. If you can imagine it, we can make it.

Unison expansion systems are installed In some of the worlds most prestigious projects – from Queens Wharf Casino to the Grand Opera Tower Dubai, Doha Metro Railway Station and the Port of Singapore.

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