Is It Possible to Overlay Composite Decking on a Wooden Deck?

Introduction

Decking is an essential feature for many homes, offering an outdoor space for relaxation and entertainment. However, maintaining a wooden deck can be a challenging task due to wear and tear from weather conditions and general use. One solution that has gained popularity is the idea of overlaying composite decking on top of an existing wooden deck. This approach promises the benefits of composite materials—such as durability and low maintenance—while potentially extending the life of the original structure. In this article, we will examine the feasibility of this method, covering aspects such as preparation, compatibility, and overall suitability for different types of wood decks.

Preparation and Compatibility

To successfully overlay composite decking onto an existing wooden deck, thorough preparation is key. The first step involves assessing the condition of the existing deck. According to experts at This Old House, it is crucial to ensure that the wooden deck is structurally sound and capable of supporting the additional weight of the composite material. Any damaged or rotten sections should be repaired or replaced before proceeding with the overlay process.

The compatibility between the new composite decking and the old wooden structure must also be considered. Composite decking panels are typically installed using hidden fasteners or clips, which require a flat and level surface. Therefore, it’s important to ensure that the wooden deck is even and stable. If necessary, adjustments might need to be made to the existing framework to accommodate these requirements.

Suitability for Different Types of Wood Decks

The suitability of overlaying composite decking on a wooden deck largely depends on the type of wood used in the original construction. For instance, decks built with pressure-treated pine may be more suitable candidates for this renovation compared to those constructed with cedar or redwood, which have different characteristics and potential issues with moisture absorption.

According to a study published in the Journal of Materials in Civil Engineering, composite overlays on wood decks can enhance structural integrity. However, it is advisable to consult with a professional contractor to evaluate the specific conditions of your deck and determine if this approach is appropriate for your situation.

Conclusion

Overlaying composite decking on an existing wooden deck is a feasible option for homeowners looking to upgrade their outdoor spaces without completely replacing their current structures. Proper preparation, consideration of compatibility factors, and assessment of the original deck’s condition are critical steps in ensuring the success of this project. While this method offers numerous benefits, including enhanced durability and reduced maintenance needs, it is important to seek expert advice to tailor the solution to your specific deck type and environmental conditions.

Reference

How to Re-Deck Your Deck – This Old House

Composite Overlays on Wood Decks: An Experimental Study – Journal of Materials in Civil Engineering