Composite deck boards are susceptible to expansion and contraction with fluctuations in temperature. If the fastening clips are tightened too much, it can cause unequal expansion and contraction of the boards, leading to warping or buckling.
To avoid this, it is important to ensure that the clips are tightened correctly. If you still notice uneven expansion, you can add two colour-matched screws or screws with plugs in the centre of the board and into the joist to secure the board in place, promoting equal expansion on both ends. This simple solution helps maintain the integrity and beauty of your composite deck for years to come.