How to prepare composite decking boards for winter? A practical guide.

Why prepare composite decking boards for winter?

Although composite decking boards are known for their resistance to weather conditions, low temperatures, moisture and accumulated snow can affect their structure over time. Here are the main reasons to take care of your terrace before winter:

• Preventing scratches and stains: Dirt and leaves left on the boards can cause discolouration that is difficult to remove in spring.
• Protecting against moisture: Standing water can freeze and widen micro-gaps in the boards, potentially causing damage.
• Extending their lifespan: Regular maintenance increases the material’s durability, keeping it looking impeccable for longer.
• Safe use: Frozen boards can become slippery, increasing the risk of falls.

What should you do in winter to protect composite decking boards?

• Clear snow regularly: Don’t let thick layers of snow build up – their weight can cause the boards to deform.
• Avoid sharp tools: Do not use metal tools to remove ice, as they may scratch the composite.
• Check frequently: Make sure water is not collecting in the gaps, and regularly remove leaves or mud.

How to prepare composite decking boards for winter

Below you’ll find a detailed plan of steps worth taking before the cold weather sets in.

1. Thoroughly clean the surface of the boards.

The first step is to remove all dirt, such as leaves, dust, mud or moss. Accumulated dirt can freeze and cause minor damage or discolouration. How should you do this?

• Sweep away leaves and twigs: Use a soft-bristled broom to avoid scratching the surface of the boards.
• Wash the terrace with water: Use a garden hose or pressure washer (at low pressure!) to remove any remaining dirt.
• Use a composite decking cleaner: If stubborn stains have appeared on the boards, use a specialist cleaner for composite decking boards. Avoid harsh chemicals that could damage the surface.

2. Removing moss and lichen.

Moss and lichen often appear in damp areas, particularly where the boards are less exposed to sunlight. They not only affect the appearance, but also make the surface of the boards slippery.

• Mechanical removal: You can scrape off smaller patches of moss with a plastic scraper.
• Chemical products: For larger areas, use a moss remover that is safe for composite materials. Rinse the boards thoroughly with water after application.
• Avoid metal tools: They may scratch the surface of the boards and damage their protective coating.

3. Check the water drainage system.

Standing water is one of the biggest threats to composite decking boards in winter. It can freeze and lead to microcracks. It is therefore important to make sure the terrace has a suitable gradient and that the drainage system is working properly.

• Clean the drains: Remove accumulated leaves and dirt from drainage systems or gaps between the boards so water can drain freely.
• Correct board alignment: If you notice water collecting in certain areas, check whether the boards are levelled correctly.

4. Protect against mechanical damage.

In winter, we often use snow shovels or road salt. However, unsuitable tools can damage the surface of the boards.

• Plastic shovels: Use plastic tools to clear snow, as they will not scratch the composite.
• Avoid salt: Road salt can cause discolouration and damage the structure of the boards. Instead, use sand or other anti-slip products that are safe for composite surfaces.

5. Maintenance and impregnation.

Although composite decking boards are usually less demanding than wood, some models may require impregnation or special protection.

• Composite decking preservatives: Check whether the manufacturer recommends using a specific protective product. If so, apply it according to the instructions.
• Regular inspection: Look out for any damage or missing sections that should be repaired before winter to prevent them from getting worse.

6. Protecting furniture and accessories.

If there is garden furniture or planters on the terrace, it is worth protecting them appropriately so that they do not damage the surface of the decking boards.

• Protective pads: Place them under the legs of furniture to prevent scratches.
• Storage: It is best to move lightweight furniture and accessories into an enclosed space or cover them with waterproof covers.

Summary.

Preparing composite decking boards for winter is a key step that will help preserve their durability and appearance for many years. Thorough cleaning, removing moss, protecting against moisture and carrying out appropriate maintenance are the basic measures worth taking before the frosts. This will ensure that your terrace not only gets through winter in perfect condition, but is also ready for spring gatherings outdoors.

Take care of your composite decking boards today, and they will greet you in pristine condition in spring! Do you have tried-and-tested ways of looking after your terrace in winter? Share them in the comments!