Expansion joints are designed to move. They're not designed to let water into your building.
Correct expansion joint sealing provides a flexible, weather-resistant barrier while allowing the structure to expand, contract, settle, and vibrate as intended.
1. Stops water getting through
A failed joint can become a direct entry point for rain and moisture. Once water gets behind the building envelope, the resulting leak can be difficult to trace and expensive to repair.
2. Protects reinforced concrete
Moisture reaching reinforcement can contribute to corrosion, cracking, and concrete spalling. Maintaining watertight joints helps reduce this risk.
3. Accommodates movement
Professional joint sealing uses flexible sealants, backing rods, primers, and engineered systems selected to suit the expected joint movement.
4. Maintains fire-rated separations
Where required, tested fire-rated joint systems help maintain fire and smoke separation between building areas.
5. Improves the building envelope
Properly sealed joints help minimise uncontrolled air and moisture movement through the structure.
6. Reduces safety issues
Deteriorated joints in pedestrian and traffic areas can create uneven surfaces and trip hazards.
7. Saves on future repairs
Finding and repairing failed expansion joint seals early is generally far simpler than repairing widespread water damage later.
Expansion joint maintenance is particularly important across commercial car parks, podium decks, façades, rooftops, plazas, and connections between adjoining structures.