But then try asking them to explain what makes one brand's wood-plastic composite (WPC) or polyvinyl chloride (PVC) decking or trim different from another. . composite manufacturers and suppliers have faced lawsuits related to a host of problems, including fading and color changes, slippery surfaces, shrinkage, swelling..
Jul 15, 2015 . When it dries, the wood will shrink. These cycles will eventually cause wood decking to warp and crack. This is even true of cedar decking and redwood decking as it ages. Composite decking such as decking and PVC such as Azek decking doesn't absorb moisture, so swelling and shrinking are not..
Mar 2, 2017 . And you may not have an expensive deck restoration job in your near future. It is that cold temperatures cause materials to shrink, and some components of your deck are shrinking more than others. This builds up stress that suddenly relieves itself and produces the loud cracking or popping sounds
For this reason, I usually butt deck boards as tightly together as possible, so that they'll leave a slight gap when they do shrink. If the wood has been kiln dried after treatment, also called KDAT, most of the moisture has already been removed in a controlled environment, so very little shrinkage will occur after installation
Jun 24, 2005 . A look at composite decking with Extreme How-To. . However, today questions and shortcomings are becoming evident in composite decking (C-D). Everything new . Moisture swelling the wood particles, then shrinking with evaporation, loosens and breaks down the plastic bond even more. After a few..
Depending on the type of composite decking, the screws may be driven through the face of the planks or hidden from sight. When installing wood decking that is still wet with preservative, butt the boards up tightly together since they will shrink upon drying. Wood decking costs less than composite, but it requires finishing..
proceed with your plans for a new composite deck. We recommend that you read the information below and pay special attention to the guidance provided in the Expansion/Contraction/Shrinkage section. Screw sizes recommended for different board thicknesses: 1-1/2" Length Screws - *3/4" (or less) Solid Deck Boards..
If it's currently rather wet then it will ultimately dry and shrink, in which case you can install them very close together so that the gaps will not get too wide as the shrinkage occurs. If the wood is . If you're using wood (as opposed to composite) decking, err on the side of wider gaps than narrower. Decking..