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Click System Floor Without Grooves (Concrete Subfloor)
Fix a hollow or creaky click floor on concrete
A click floor with square edges laid on concrete often sounds hollow or creaks where it sits over dips in the floor. Injecting adhesive fills the hollow and stops the boards moving up and down.
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How to fix it, step by step
- Use Injectafix Pro or Injectafix Easy Squeeze. Inject through a 2mm hole (Pro) or 3mm hole (Easy Squeeze) into the hollow area. The adhesive stays flexible, so it moves with a floating floor.
- Weight the area and leave it 24 hours. Then fill the hole to match the floor.
Guide: how to fix a squeaky laminate floor.
Frequently asked questions
How do I know if my click floor has a V-groove?
Look at the joints between the boards. If the edges are bevelled so there is a small V-shaped channel along each joint, your floor is grooved. If the boards meet flush with a square edge, it has no groove and Click Lube and Groove Gasket can't get into the joint.
Will it stop my floor sounding hollow?
Yes, where the hollow sound comes from a gap between the boards and the concrete that the adhesive can fill.