Ways to Extend the Life of Your Deck

Dec 19, 2023

With the warmer months on their way, it’s time to think about prepping your deck to make sure it’s ready for both function and fun. You can do several things, no matter whether you have a composite or a timber deck; this will ensure it has a long life and is safe and structurally secure.

We will check out the steps you can take so that your deck is beautiful - and ready to face any weather. Also, we will look at the differences in treating timber versus a composite decking material, like Trex.

Keep Your Deck Clean and Free of Debris
If you want your deck to last a long time, whether timber or composite, you must ensure it stays clean. Furniture, large plants, and grills that have been in the same place on your deck for an extended time will eventually get a build-up under them. It’s necessary to move these and clean them underneath. Additionally, humidity in the air can contribute to the accumulation of mildew. Mildew ultimately rots your deck and its substructure.


Clear debris off your deck’s surface to help prevent the proliferation of moisture, which causes mould. While doing this, check for loose boards, rusted nails, and weak fasteners. A little preventative maintenance goes a long way.

Cleaning Your Deck
There is a
proper way to clean your deck. You can either do this with a power washer or by hand. After clearing off deck furnishings, sweep your deck. Take care to remove any debris build-up by removing fallen leaves between the deck’s slats.

Prepare a homemade mixture of bleach, water, and, if desired, ammonia-free dishwashing detergent. Use a bristle brush to clean the deck surface, then thoroughly rinse. Allow it to completely dry before sealing or replacing any deck furniture.


Composite decks, such as Trex, need a semi-annual cleaning. Composite material comes from recycled plastics and wood filler, making it eco-friendly. It is mildew-resistant and resilient in most climate conditions. Trex doesn’t need sealing, and it is impervious to insects.

Sealing Your Deck 
If you have a timber deck, consider
sealing it to protect it from moisture and harsh weather. Sealing your deck is a good idea because it will make it last longer and prevent stains and grime in some instances.

After you clean your deck, let it fully dry. Drying may take anywhere from 24 to 48 hours. After it’s dry, apply the sealant. Depending on your taste, you can use either a clear or tinted seal on your timber. The best temperature to apply a sealer is between 10° to 32° Celsius. Make sure the weather is dry. It doesn’t need to be sunny, but the forecast should ideally be rain-free for several days.


An important note: waiting about a month before sealing a new timber deck is best.

Protecting Your Deck
To help your deck (both composite or timber) have a long life, protect its substructure. Joists are the horizontal boards that support your deck’s surface. The bearers are the vertical structures that hold the weight of the joists. Keeping this area dry is essential so your deck can maintain its strength.


Inspect this area for trapped moisture, algae, and rot every six months. Also, check for bugs, as the warmer months allow insects to invade. You can waterproof this area by using flashing tape, such as butyl tape. Joist flashing tape will help waterproof the foundation of your deck.

Another reason to protect and waterproof your deck’s base is so it doesn’t warp and skew the deck boards. Australia’s climate can vary greatly between seasons, so guarding your deck’s timber structure and supports is wise. Being prepared is essential.

In Conclusion 
Having a deck upgrade expands your living space, enhances your fun, and increases the value of your home. Nothing is like breathing in the fresh air, grilling prawns, and enjoying a glass of wine or spirits on your deck. All with a gorgeous view! Homeowners who want to spend time outdoors on their decks should take the necessary steps to avoid climate-related issues, timber rot, and damage from pests. Having a deck last an extended period – and look good - is always a boon to your house’s worth and enjoyment.

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