Expansion joints
Reliable movement begins with watertight expansion joints
Expansion joints are critical elements in any building or civil engineering structure. They allow controlled movement caused by temperature fluctuations, structural settlement, and dynamic loads — preventing cracking or structural stress. However, these joints also represent one of the most vulnerable areas for water ingress. Without proper waterproofing, leaks can quickly lead to corrosion, concrete degradation, and costly repairs.
Effective waterproofing is therefore essential. It ensures the structure remains watertight while allowing for the natural expansion and contraction that occurs over time. Whether on roofs, basements, podium decks, or civil infrastructure such as bridges and tunnels, watertight expansion joints are key to maintaining the structure’s integrity and extending its service life.
That’s where Bitufa’s expertise makes the difference. With over 45 years of experience in bituminous waterproofing, Bitufa develops high-performance systems that combine flexibility, adhesion, and long-term durability. Our expansion joint solutions are engineered to accommodate movement while maintaining seamless waterproofing continuity — even under extreme weather, heavy loads, or chemical exposure.
What makes Bitufa waterproofing for expansion joints unique?
Bitufa combines advanced bituminous technology with specialized detailing techniques to create watertight expansion joints that last. Unlike generic sealing solutions, Bitufa systems remain elastic and watertight even after decades of movement cycles. Strong adhesion to adjacent surfaces ensures continuous waterproofing protection without weak spots, while the membrane’s flexibility allows it to bridge expansion and contraction movements without failure.
Typical applications include roof expansion joints, basements and foundations, podium decks, parking garages, tunnels, and bridges — anywhere structural movement and waterproofing performance must go hand in hand.
Flexobit: seamless waterproofing across every detail
At the core of Bitufa’s expansion joint systems lies Flexobit, a 5 mm thick, homogeneous, non-reinforced SBS waterproofing membrane known for its outstanding flexibility and self-healing properties. Its unique non-reinforced design allows it to adapt perfectly to complex joint geometries and transitions, ensuring a continuous waterproof barrier even under constant movement.
Flexobit’s SBS polymer-modified bitumen compound delivers superior elasticity and long-term resilience, allowing it to absorb structural movement without cracking or delamination. When integrated into Bitufa’s expansion joint detailing, Flexobit ensures the same high-performance waterproofing that protects roofs, basements, and podium decks — maintaining seamless protection across every critical connection.
Bitufa Waterproofing Solutions
Key Benefits:
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- Seamless, self-healing membranes
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Extreme elongation and flexibility
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Durable and long-lasting
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Critical area protection
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Versatile installation
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Proven experience, over 45 years
Applications:
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- Basement walls and floors
- Underground parking garages
- Retaining structures
Atlantis Royal Towers &
Atlantis Water Park
Consultant: Norr Engineers Consultants
Contractor: Al Naboodah Laing O’Rourke
System: Flexobit Tanking System
Quantity: 130,000 m2
Client: Kezner International
