PVC Decking is a type of plastic decking popular for its ease of installation, durability, and high value. These benefits are not without drawbacks. However, one issue with PVC decking is that it can warp due to temperature changes or sunlight exposure. There are ways to minimize the occurrence of deck warping by using superior materials and methods while also protecting your investment in quality material. Here are some tips on how to protect your PVC decking from warping.
Know how long it takes PVC to warp
Generally, the thicker the PVC decking is, the more time it takes to warp, and vice versa. For example, a ½-inch-thick piece of PVC decking can warp in about six hours when exposed to extreme heat outdoors, while a ¾-inch will take up to eight hours or longer under similar conditions. As such, it is recommended that you buy thicker PVC decks if excessive sun exposure is common in your area.
Find a shade-resistant color
The color of your decking can also affect its ability to withstand exposure to sunlight. If you plan on protecting your decking with a protective coating, choose a shade-resistant color that will allow UV light penetration yet still provide protection.
Install your deck lower and closer to the ground
Another essential step in preventing warping is placing your PVC deck as close to the ground as possible. In most cases, decks positioned at least 8 inches lower than their neighbors will not warp significantly over time. This is because gravity keeps unwanted moisture from accumulating near the surface of your exterior deck.
Use heat-resistant felt under your decking
Another secret to how to protect your PVC decking from warping lies in the selection of underlayment. Specifically, you must use a heat-resistant type of fibrous felt. This type of material extends the life of your decking and is highly effective in resisting warping due to temperature changes.
Paint your deck’s surface
Another tip for protecting your PVC decking from warping is using a coating on its surface. This type of protective coating not only extends the life of your deck but also minimizes the occurrence of warping by protecting it from harmful UV rays and moisture. To keep it from cracking, note that this coating must be reapplied when the surface shows signs of peeling.
Use a quality primer
Aside from the type of protective coating you use, it is also crucial that you choose a high-quality primer. An inferior primer will not only fail to protect your deck, but it can also cause warping. For this reason, always select high-quality primers made by reputable manufacturers.
Inspect your deck regularly for signs of moisture buildup
If your PVC decking is constantly exposed to moisture, it is bound to warp and deteriorate over time. For this reason, inspect your deck’s surface regularly for any sign of cracks or bubbles resulting from water buildup. Properly repair these signs before they become a big problem.
Before selecting the best type of PVC decking, you must learn how to protect your PVC decking from warping. Using this knowledge as a guide, choose the right size and length of PVC decking. Consider Sherwood’s TIVA Dek for your next decking project.
