does composite decking expand and contract on wood

A: Clemens Jellema, a deck builder in Owings, Md., responds: The problem with composite and cellular PVC trim is that these synthetic materials react differently to humidity and temperature changes than does pressure-treated wood framing. Wood tends to expand and contract across its grain with ...


VERANDA composite decking and railing offers the natural look of wood without the ongoing maintenance. These durable ... Our composite decking products consist of wood and plastic with a rich, realistic woodgrain pattern. ... During installation, it will contract only slightly in cold weather but does expand in hot weather.


Plastic and metal tend to expand and contract during seasonal changes, which may require periodic adjustment. Wooden decks are not as susceptible to this expansion and contraction due to climate changes. Although there are many different composite deck patterns that simulate wood grain, nothing can duplicate the ...


The clip fastener is designed to be used on both systems but the screw for the metal is a self-tapper. Please always specify to your supplier whether you are using timber or metal framing. The only limitation with metal framing is that composite decking and metal will expand and contract at different rates and for this reason ...


Made from a combination of plastic and wood fibers, composite decking is manufactured to look like real wood decking. ... Composite decking does expand and contract as temperatures rise and fall, and the exact amount depends on the difference between the temperature during installation and your local area's maximum ...


TruGrain Decking has come out with a product that you can stain just about any color you like, and it gives a wood-like grain that looks much like or Mahogany. ..... Virgin Vinyl decking does expand and contract a great deal and this needs to be accommodated by using different methods for fastening and leaving ...


Manufacturers of capped composite boards will often leave one side uncapped to prevent the material from expanding and mushrooming out of the corners of the boards. This is usually the bottom side and allows the material within to expand and contract naturally during varying ...


As much as three-quarters of all wood-plastic composite decking is made with polyethylene (recycled or virgin), a soft plastic that's used for plastic bags and a variety of other products. A smaller number of .... A 10-foot board can expand and contract more than 1 2 inch in a 100-degree temperature swing.


Composite materials behave differently than wood. ... UPM ProFi Support Rails can only be used when laid directly on a hard flat surface (eg. concrete): for raised decks, UPM ProFi Large Aluminium Support Rails or ... This ensures that the boards stay fixed in place, whilst allowing for thermal expansion and contraction. 9.