Weatherproof decking: What you need to know

This article includes instructions about weatherproofing wood decking, why it’s essential, and when to do it seasonally (i.e. now – late summer – before the wet and cold weather comes).


Weatherproof decking: What you need to know

Weatherproof decking: What you need to know


The unpredictability of Fall and Winter weather is coming. Yet it tends to sneak up on us every year. Depending on where you live, fall and winter brings hard rains, heavy snow, winds, or brutally cold temperatures—all that can wreak havoc on your wood decking. Now is the time to prepare, including weatherproofing your wood deck.

While some wood decks (like Accoya) are more durable than others, it’s still prudent to ensure that any wood deck performs year after year. Here are some simple steps to weatherproof decking so you can enjoy it for years.

Take a walk

Take a walk


The first step in weatherproof decking is to walk around and inspect the deck for any signs of rotting, loose boards, popped nails, or splintering wood. Now is the time for repairs, from tightening loose fasteners or nails or replacing damaged decking. Once that’s completed, you’re ready for the next step.

Seal and coat for longevity and looks

Over time you need to reapply stains and paint as well as seal. By sealing your deck, you can protect it from the deluge of fall and winter moisture and water penetration and ultimately reduce the risks of rot and mold growth. While you don’t have to worry about rot and mold growth with Accoya, other natural wood options require proper sealing. With transparent stains to retain a natural wood look, the material will eventually fade to a lovely natural silver-gray patina. If the natural look is not your thing, you can stain Accoya any color, even black, using oil- or water-based stains. Our stains enhance your wood deck’s natural beauty and offer added UV protection to shield it from the sun’s harmful rays.

Give your deck a bath

After inspecting your deck, grab a stiff brush and clear water to clean your Accoya wood deck if you notice debris or dirt. This process can be improved by wetting the brush before cleaning, as the soaking softens the biofilm. (Decking forms a “biofilm,” a layer that holds water and reduces the drying speed. Regular cleaning can help control its build-up.) For more persistent stains, a cleaning agent can be used, and, at Accoya, we recommend a cleaning agent with a PH value below nine and rinse the decking thoroughly with clear water. Never use a high-pressure washer, even on the low setting— you can destroy your wood deck.

More preventive steps that are easy to do

Besides an annual cleaning, board replacement, and other maintenance, there are other complementary ways you can weatherproof and keep your wood deck lasting for years. Is water pooling anywhere on your deck? Consider adding gutter systems or downspouts to carry water off the deck and away from your foundation. To help shield your deck against your local environment from wind or rain, or snow, consider adding a retractable deck awning or a pergola with a waterproof cover. Try to rotate plant pots or furniture. Over time, leaving these items on your wood deck is a breeding ground for wet, moldy patches and can stain or discolor your wood deck.

Accoya provides a 25-year residential warranty, giving homeowners peace of mind that their decking is worth the investment. Decking boards made from Accoya wood are very durable and rarely need repairs. That said, take the time each summer to do a proper weatherproof decking inspection to keep ahead of any repairs, and always clean your Accoya decking regularly with just water and a brush.

To read more about our decking options, visit our website.



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