![]() First, it may remove the screws and nails used to fasten the decking. ![]() The expansion of the boards have issues associated with it. Temperature and humidity cause these boards to shrink or expand. On the other hand, composites do change in size, but to a lesser extent. The truth is, most wooden boards will expand or shrink regardless. When water is left, the decking is exposed to moisture the boards can absorb moisture. In worst-case scenario, due to the pressure from the expansion, the decking boards can warp, twist or even rise away from the substructure, with splits and cracks appearing. On the other hand, if there’s not much room for decking boards to expand, which they will eventually do, they can create friction and damage each other. With too much air, it can also decrease your decking’s resistance to fire. The gaps may become too big that some people may trip when walking on the decking. When your decking shrinks, it can cause some accidents in your home. However, the former is more common for composite decking boards. All boards will expand when exposed to high temperatures, whilst others are prone to moisture. ![]() Composite expands in the heat and contracts in the cold therefore, when installing, close attention must be paid to the weather conditions during the installation. One of the main problems with decking is the expansion and shrinking of the decking boards. Many people who try to build decking for the first time often forget about this crucial detail. When you install composite decking, especially if you go down the DIY route, you have to remember to leave a gap between composite decking boards.
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