Many owners are not particularly aware of this. In view of this, I'm going to discuss the reasons for this. If you have some other ideas, you might as well communicate with us.
Related personnel of plastic wood profiles tell you that when you install plastic wood, you need to leave gaps. The purpose of doing this is mainly for the following factors:
2, slight thermal expansion and contraction;
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3, clean up;
Although it is said that the wood will not expand and shrink because of the humidity and drying of the environment, it will have a certain extent of expansion and contraction according to the temperature change, so it is necessary to leave the gap between the edge and the head, especially when it is installed in the winter.