Fascia need to be installed with the same gaps and specialty fasteners to allow for ventilation and prevent cracking. Fascia should be installed before decking to make sure the boards are installed with the proper overhang for a clean appearance. Installing Fasciaįascia is a non-structural siding used to conceal framing material and give your deck a consistent look from all angles. If you’re especially concerned about the appearance of joists under your decking board, the tops can be painted black to help conceal them.
TREX DECKING INSTALLATION PROFESSIONAL
Trex recommends that you consult a professional engineer about code-appropriate joist spans for heavy loads. Special consideration needs to be paid to the joists if you plan for them to bear heavy loads such as a hot tub or large planters. Trex decking installation requires that all decking boards be supported by at least three joists, and both Trex and Fiberon have maximum allowable joist spacing for various board orientations (such as perpendicular, diagonal or specialty patterns like picture frames or tiles). Joist positioning is the other important factor to consider when setting up your deck’s foundation. Fiberon recommends a minimum of 1½ inches between the ground and the bottom of the joists to allow for ventilation and drainage. Air needs to be able to flow underneath the deck to keep the area relatively dry and the additional space allows for proper drainage. Proper ventilation is critical to the longevity of your deck. Because it is also prone to expansion in warm weather, your decking should be kept out of direct sunlight as much as possible to keep your cuts and board positioning as accurate as possible. If you won’t begin installing your deck right away, composite decking boards should be kept flat, supported and covered to prevent sagging, warping and other damage.
TREX DECKING INSTALLATION HOW TO
While this guide is meant to give you a general idea of how to install composite decking, you should always refer to the Trex or Fiberon websites for complete instructions. Note: This document covers the basics of deck and joist orientation, installing fascia, positioning deck boards, and attaching them using screws or hidden fasteners.
While the basics of deck construction are essentially the same whether you’re using wood or composite, there are a few differences that are important to remember as you install composite decking. As a leading building materials supplier in the Midwest, Spahn & Rose partners with two composite decking suppliers-Fiberon and Trex-to help you design and build your next great outdoor project. Composite decking is a great way to refresh an aging deck or build a new one that will last for decades.
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