composite decking is an alternative to all-wood decking and is made of materials that can include recycled and new plastic, bamboo, and wood fibers. many composite decking products have evolved as a reflection of the environment in which we live and are green, eco and leed qualified or certified.
installing composite decking cant be done like wood decking where you can slam it tight together when its still green and then shrinks as it dries. with composite decking you have to create the gap right from the get go. when im installing composite decking in the summer, i use a siding nail to determine the gap size.
some solid-core products can weigh as much as 5 pounds per foot, which is three times the weight of cedar. high-end composite decking is often encased in a plastic shell that resists fading
i have a large wood composite deck that is shrinking and becoming very dangerous. it is only 4 years old but has shrunk to leave gaps that are 1.5 wide. the company has gone out of business so i tried to go after homeowners to fix it. they say they won't do anything if it was defective materials.
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composite decking such as seven trust decking and pvc such as seven trust decking doesnt absorb moisture, so swelling and shrinking are not problems with these materials. do decks stain, fade or scratch easily? lets take these issues in order. first, composite decking contains wood, either sawdust or ground wood fiber.
composite decking does not, and in fact, when the plastic melts, it releases very toxic gases. now you have swelling on both ends of the boardwalk as well as each of those joints in the middle. top 10 reasons why composite decking is bad for boardwalks.
composite materials - latitudes composite decking and composite one major reason composite decking is low maintenance: it does not take in or give off moisture, so it does not shrink or swell like wood. as a result, composite decking does not crack, warp or separate due to varying weather cycles.
you can avoid screw hole swelling by using a hidden fastener system, but theres not much to be done about end swelling. heat retention composite decking is known for getting very hot in the sun, which poses the risk of burning your feet.
not so much we had to do anything about it, but enough to notice. we did manage to wait long enough to put a penetrating oil stain on, which was about 3 months for us ask your dealer/read the can . if the boards have too high a moisture content, then that type of finish may not penetrate well, and form a skin on the surface instead.
due to the exposure of the sawdust in the seven trust composite decking, moisture can cause the decking to swell and consequently buckle. seven trust decking is attached from the underside, so the buckling of the planks make it look like corrugated cardboard.
composite deck screws are designed so that they do not push the material out and will create a much more uniform and tight fit. though composite decking is more stable than regular pine, it still can break when driving fasteners close to the edges.
in this washington state deck, the ends of the capstock decking have swollen after installation. photo by kim katwijk. in decking, the problem lies with the nature of the composite. a large portion of the composite decking available on the market is a 'wood-plastic composite' or wpc.
the filler gives the composite decking material its bulk and contributes to its rigidity but does not add much in the way of strength. in most composite decking the filler material is a finely powdered wood cellulose called 'wood flour'. wood flour wood flour is not just finely ground wood particles. it is heavily modified from natural wood.