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  5. Why Keep Expansion Joints When Installing WPC Decking?

Why Keep Expansion Joints When Installing WPC Decking?

Undeformed, unfading, rock-solid decking appear increasingly in outdoor landscapes such as balconies, courtyards and many parks and squares.

Observant people will find that there will always be a gap of about 3 mm between the horizontal and vertical joint end faces of WPC decking. So, are these gaps for ventilation or for rain to leak?

In fact, the above two functions are available. When the temperature difference is too large in the morning and evening or in winter and summer, the wood-plastic decking will slightly expand and contract. The expansion joint reserved during installation is a space for the plastic wood decking to move, and to avoid deformation and arching.

WPC decking
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