Installation Guide of Decking

Prior to installing any composite decking, it is recommended that you check with local building codes for any special require- ments or restrictions. The diagrams and instructions outlined in this guide are for illustration purposes only and are not meant or implied to replace a licensed professional. Any construction or use of Everdur wpc must be in accordance with all local zoning and/or building codes. The consumer assumes all risks and liability associated with the construction and use of this product.

① We suggest that the wpc decking should be installed by professional staff. WPC decking shall not be used as the component of the foundation or substructure. The ground or supporting structure should be strong enough to avoid from shifting, collapse and subsidence.

② WPC decking CANNOT be paved directly on the surface like cement, brick, waterproof layer. It must installed onto a substructure.

③ Areas like heavy impact, long-term exposure to water or corrosive chemical erosion should be away from wpc boards.

④ Standard woodworking tools and fastener are  required for  installation.  Fastener  must  be provided by Everdur.

Ventilation

Notes: Decking should not be installed in a closed area, and the ventilation conditions under the boards shall ensure air or water can flow through in case of quality issues. 

Important: Everdur products CANNOT be directly installed onto the ground. It must be installed onto a substructure that is made into a frame or joist, so there is adequate and unob- structed air flow under the decking to prevent excessive water absorption. If there is excessive water absorption to wpc, there could be some swelling that occurs. A minimum of 100 mm (4 inches) of continuous net free area under the decking surface is required for adequate ventilation on all decking, so air can circulate between adjacent members to promote drainage and drying. In the case that installation is below 100 mm (4 inches), it is recommended to look up the maximum rainfall of the area to determine what height would need to build to ensure no flooding of the deck occurs. If the rainfall is determined not to flood the deck, a slope of 10mm/meter must be used on the frame towards the direction of the drainage to ensure that there is no free-standing water. This way will make sure all wpc decking is not immersing into water in long time. So does the wpc tiles for its application area.

Everdur  wpc shall be stored on a flat solid surface on joists or pallets, which is the correct way for storage. 

Joist must be fixed onto flat and hard ground. It is recommended to use treated Pine wood joist or wpc joist. Adequate spacing in the joists is required to keep the deck boards from bending. For residential project, the joists span on Center-to-Center should be less than 35cm; for commercial project,  the  joist  span  on  Center-to-Center  should  be  less  than  30cm.  If  joist  spanning  on center-to-center with angled decking, the span should be 10cm less than normal requirement.

Make sure to always pre-drill the wpc profiles before fastening wpc decking. Make sure to leave enough gaps because wpc decking boards will experience expand and contract with changes in temperature. Expansion and contraction are most significant where extreme temperature changes occur. Fastening the deck planks according to the gapping requirements noted in the following key point. 

Key point

● Side-to-side gap between boards: 3-7mm
● End-to-object and side to object gap: Min 5mm
● End-to-end gap:3-7mm. Decking installed in winter should leave more gap than installed in summer due to the expansion and contraction.

Facia board or corner trim must be pre-drilled before being screwed, and fascia board is mostly recommended. Facia board should leave min 2mm gap between wpc decking. The screws should drill into joist not decking board with facia board. Water proof silicone can be used in the end cap in case of peeling off, and then push into the decking board. 

Keep WPC products away from high-temperature equipment (such as heater, grilling apparatus, etc.) to avert deformation, discoloration, or other damages. Never let kerosene, gasoline, or other organic solvents come into contact with your deck.

Do not leave opened cans or other metal items on it unattended for a long time to prevent rust

stains.Do not place heavy loads directly onto it and try to keep this material away from heavy impact or attack during usage to avoid any damages.

Please take care of it during transportation, installation and storage, avoid its falling from high place. Although WPC decking needs low-maintenance, periodic cleaning can help maintain its beauty. Power washing with proper cleaning agents may enhance the results. Spray in the direction of grain pattern to avoid damaging it. Use with caution not to damage the material and always take proper safety precautions when operating a power washer.

Note: Please only walk with shoes on the floor after long sunshine, as the wpc board could be very hot.