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Movement Joints/Expansion Joints

UKFF specializes in providing precise detailing for all types of movement and expansion joints.

The appropriate detail depends on factors such as the level of movement, foot traffic, Temperature, size, and substrate conditions and materials.

We are experienced in carrying out movement joint works to ensure they are correctly installed, particularly when our membrane is to be installed over the joint.

Proper installation of movement joints is critical, as they can exert stress on the waterproofing membrane and must themselves be waterproof to prevent water ingress.

As a dedicated waterproofing company, we carefully oversee our installations to ensure our system is fully bonded, flexible, and able to move with the substrate.

Our system is designed to accommodate movement between different materials, such as concrete slabs and steel plates, preventing potential tearing or damage to the membrane caused by differing material movements.

If a flexible waterproofing system is not used over a movement joint, several issues can arise:

Cracking and Tearing: Without a flexible system, the membrane may not accommodate the movement at the joint, leading to cracks or tears in the waterproofing layer.
Water Ingress: Cracks or tears can allow water to penetrate through the membrane, causing leaks and potential damage to the underlying structure.
Reduced Durability: Rigid waterproofing systems are less able to withstand the stresses caused by movement, which can significantly shorten the lifespan of the waterproofing.
Structural Damage: Water ingress and mechanical stress can lead to corrosion of reinforcement, deterioration of substrates, and overall structural weakening.
Increased Maintenance and Repair Costs: Failure to accommodate movement increases the risk of damage, leading to higher ongoing repair and maintenance expenses.

Using a flexible waterproofing system designed for movement joints is essential to maintain the integrity, waterproofing performance, and longevity of the structure.