Composite decking is a great alternative to traditional wood decking, but does have some limitations. The width of the Wickes range of composite decking … How Do I Replace My Wood with Composite Decking? First, ensure that the deck boards are aligned properly. This is because dark-colored composite decks absorb heats more than light-colored composite decks. Providing expansion gaps allows proper drainage and ventilation to the sub base which prevents the timber from rotting. This is so that when the composite decking expands, the decks will not warp. Expansion gaps explained Deck boards are laid with a gap between each individual one - both along their length and their ends. for 2.4m length boards 7mm gap should be left when butting. The accounts of issues are repeated with a frightening regularity and sameness throughout the threads of complaints. Fasten your deck boards as … The color of your composite decking matters because it affects how your deck expands. 6. Different makers of composite decks will provide various instructions on how to install your deck and the right amount of space that you should leave. For composite decks, you need to leave some gaps during installation. So, it is advised that you leave a space of 5mm between the edges of the decks. Notch your composite decking material around rail posts. Why not order our sample pack! In this case, we will be using a rail sleeve and base trim that will cover the gaps. INITIAL HINTS AND TIPS FOR INSTALLING HALLMARK COMPOSITE DECKING 7. This makes DuraLife exceptionally resistant to staining and fading compared to older generations of composite decking from … The Wood Plastic Composite (WPC) Fencing is crafted to be durable, reliable, and weather resistant. All Rights Reserved. Note: To allow for expansion and maintenance, please be sure to keep a 30mm expansion gaps between all sides of your deck and … The polyethylene used in our decking boards is a high quality, … The plastics in the composite decks make them absorb heat when the decks are exposed to direct sunlight. It is recommended that there should be a 5mm gap between the ends of your composite deck boards. A composite decking is a strong and durable building material that is used to make decks. It is important to understand these reasons, as it directly influences the correct installation of the decking … There are some factors that affect composite decks expansion. When leaving an expansion gap for each board, compare the current installation temperature (ambient) to what is … Full step by step installation video can be found at the end of this installation article. UltraShield decking products are designed to protect against mold, fading, moisture and mildew.See our simple composite decking installation video here. Gapping is necessary for drainage and the slight thermal expansion and contraction of Trex decking boards. Composite materials that use sawdust or wood fibers in the core are subject to expansion and contraction due to changes in moisture content, which is typically seasonal. Staining Problems With Trex Decking. Everlast decking should be stored flat. As long as the space left is big enough for adequate drainage and board expansion in the heat, and the gaps are exactly the same size to give a uniform finish, the gap size is an aesthetic decision. Because with a Trex deck you can’t sand or refinish … ENVISION Composite Deck Screws and EverGrain Composite Deck Screws are color matched deck screws designed for use with EverGrain and Envision. So, when you are laying your composite decks on the joists, you must make sure that you leave at least 5mm space between the composite decks. What Are the Different Methods Of Installing Composite Decking? The MAXIMUM SPAN WIDTH is 350mm center-to Centre. It is recommended that there should be a 5mm gap between the ends of your composite deck boards. As temperatures fluctuate, composite deck boards will naturally experience thermal expansion and contraction. EXPANSION: Everlast decking boards will expand and contract at a rate of around 0.3% to 0.5% of the boards length. Providing expansion gaps allows proper drainage and ventilation to the sub base which prevents the timber from rotting Composite decking should require minimal maintenance over its life, usually a clean-up with a garden hose is sufficient Capped polymer and capped composite deck boards, on the other hand, are installed at a minimum 1/8” gap between boards because they won’t shrink from drying like pressure-treated decking. The amount of space required depends on how often temperature changes where you live. Gapping also allows for the shrinkage of the wood joist system. That’s why the board ends should never be installed tight against one another. Remember that composite decks are made with wood and plastics. Which Decking Material Is the Best for My Garden. So, you should make sure to check with your composite decks’ maker for advice so that you will know the expansion level of your deck. Push the next board in place. during the winter my boards expand every year the gaps close and the boards buckle. Not sure of the type of composite decking or the colour you want? How much of a gap? There should always be a slight gap. There should always be a slight gap. Then, install a fastener in the middle of each board length to prevent shifting during thermal expansion and contraction. Click & Collect or delivery options are available. Composite decking is made from recycled wood and plastics, so no trees are fallen to make the board. The wood and plastics are then processed in factories and cut into various sizes so that they can be used for building decks. » Note, Trex fascia has to be gapped width-to-width and end-to-end the same as … That’s why the board ends should never be installed tight against one another. Repeat until your deck is the required length. You must gap Trex® decking, both end-to-end and width-to-width. Homeowners prefer composite decks because of the ease that comes with maintaining them. You have to leave a space between the composite decks. The essence of leaving this space is for the decking to expand and contract when they heat up. Decking expansion gaps. If joining 2 lengths of board together, make sure both ends are supported by separate Joists. There are a multitude of problems with composite decking that show up all too often to be just a stray issue for a hard to please homeowner. Expansion gaps when boards are to be butted together should be calculated based on this sum, eg. This is so that when the composite decking expands, the decks will not warp. When using WOOD/COMPOSITE SCREWS, nominal 1" thick boards require a minimum #8 - 2 1/2" or longer screw for fastening. Each decking species will have different movement properties, but let’s use Ipe as an example. Decking Boards Description. This is because there is no need for you to sand and oil composite decks to preserve them. DOUBLE JOISTING Staining is a major problem with older model Trex decking and a huge issue with older composite decking products in general. The next section explains why composite decking expand. Framing for Trex & Composite Decking. The installation process of composite decks is easy because you can choose between the surface installation and the hidden installation. In order to prevent buckling of the deck during the wet season, you need adequate gaps between the boards. Composite decks that are exposed to direct sunlight absorb heat more than decks that are positioned under shade. How much gap should I leave for expansion or contraction when installing. If we install a typical 1×6 Ipe decking board today using our weather conditions of 90% humidity and 96° while assuming the wood is 5.5″ wide, it will maintain that width through the heat and humidity; however, as we draw into … Expansion gaps … Start by planning your deck to scale on paper and try and be as accurate as possible. This means that composite decks built in the garden or lawn will absorb heat more than composite decks that are built in the balcony. How much of a gap? The expansion occurs due to 2 reasons. When installing composite decks, there are procedures that you must follow to make the process simple and to stick to best practice. As Builddeck composite decking is made up of 60% natural material, some expansion can occur however on a significantly smaller scale. So, if you live in an environment that is hot, it is recommended that you choose composite decks that are light-colored. What Is Composite Decking Expansion Gaps? These are known as expansion gaps as they allow rainwater to easily run through the decking (rather than pool in an unwanted puddle) and for the deck to expand and contract due to changes in the … Composite decking will transform your outside living space and give it a real wow factor.It's hard wearing with no need to stain, seal or sand it. Blacking like this was a problem with 1st generation Trex decking that has been corrected with newer models. Additionally, by leaving the correct expansion gaps as detailed within our full installation guide, any fluctuation can be pre-empted, avoiding possible future warping. So, when composite decks are exposed to high temperature, they expand at all sides. The installation process of composite decks is easy, the dark-colored composite decking will expand more than the light-colored composite decking. When this happens, the dark-colored composite decking will expand more than the light-colored composite decking. The size of the gaps must be even and consistent to give a pristine finish, but the choice of gap size is yours. For areas that are subject to significant temperature swings, we recommend installing your deck boards using surface fasteners. That will depend upon air temperature at the time of installation (Read this to learn more). That will depend upon air temperature at the time of installation (Read this to learn more). UK Composite decking boards are made from a mixture of hardwood fibres (approximately 55%) and high density polyethylene with the addition of certain additives to improve physical, weathering and processing properties. EXPANSION GAPS: Like a wood composite decking, ECO BAMBOO COMPOSITE DECKING also expands, although this is less than with polypropylene or polyethylene based decking products. Bear in mind when planning your deck that the length of the Wickes range of composite decking boards is 1.8 or 2.4 metres. Leave a gap calculated on the expansion rate of 0.3% - 0.5% of the board length to allow for expansion. Make sure to leave at least an 1/8" gap for thermal expansion. Leave proper expansion gaps: With the change in temperature, composite boards can expand and contract along the length of the board. One thing about thermal expansion is that it can shift the composite decks from where they are fixed if enough space is not allowed between the decks. Remember to factor all necessary expansion gaps into your plans. Here are some best practices to keep in mind to allow for expansion and contraction when installing capped composite decking: Always leave 1/8” to 1/4” gap between deck boards during installation. Get into the nitty-gritty details of all side-to-side deck board spacing requirements in our official and detailed installation guides for each … DuraLife composite decking products are uniquely manufactured with a super-strong, co-extruded polypropylene outer shell that forms a “force field” around three sides of the board. Must have header joint expansion Use starter clips Finishing slip Expansion gaps “We recommend that you use a qualified and compe-tent deck installer who is familiar with the workings of decking and outdoor pro-ducts that are exposed to the elements” 1 plank If stored outdoors the decking should be kept in a covered area to prevent exposure to direct sunlight and weathering. 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