10/06/2026
What Causes SPC Floors to Unlock at the Joints?
What many sellers won’t tell you:
🔳 Low-quality SPC manufactured using recycled materials often has poor dimensional stability, making the planks prone to movement and joint failure.
🔳 Inferior locking systems can weaken over time. Always insist on proven locking technologies such as PERGO® UNICLIC®.
🔳 Poor installation on an uneven subfloor creates stress points that cause planks to separate, unlock, and leave visible gaps.
🔳 Excessive moisture, temperature fluctuations, and lack of proper expansion gaps can further accelerate joint failure.
Before buying SPC flooring, ask not only about the wear layer and thickness, but also about the quality of the core material, locking system, and installation standards.
A floor is only as good as the system behind it.
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