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Pressure Treatment vs Dip Treatment: What is the difference?

During your search for your Log Cabin or Garden Building, you will have been inundated with technical jargon. You've come across "dip treated" and "pressure treated" in this text. But which treatment is better: pressure treatment or dip treatment?

Timber is naturally a declining material which will weaken over a length of time when left exposed to the elements. Pressure treatment vs dip treatment refers to the method in which a company adds wood preservative to your timber. The use of preservatives are crucial in ensuring the longevity of the timber by protecting it against rot and fungal decay. 

Softwoods used in Log Cabins require regular treatment to prevent moisture absorption and internal rotting over time. Our Gazebos, sheds, and climbing frames come fully pressure treated, to ensure the timber remains rot free and insect infestation free, for up to 10 years!


What is dip treatment?

Dip treatment is a method many of our competitors use to coat their timber logs with a preservative. The timber elements are dipped in a bath, or tub, of treatment to coat them. They are then left to dry before being sent out to the customer. It leaves the timber only externally coated in a preservative.

The main advantage of choosing dip treated timber over pressure treated timber, is a much lower cost, thanks to reduced labor and storage expenses during manufacturing. Dip treating requires shorter storage and treatment times, along with less costly equipment.

However, although the initial costs are lower, it will cost you in the long term. In most cases, companies will recommend treating your dip treated Shed, Log Cabin, or Garden Building to maintain its protection.

This treatment will need to be applied annually, costing you anywhere between £25 and £35 a time. It may not seem like a large expense initially, but these costs add up.


 What is pressure treatment?

Pressure Treatment vs Dip Treatment

Pressure treatment involves injecting a wood preservative into the timber at high pressure, effectively saturating the grains using a vacuum. The timber is kiln dried to remove the moisture.

Just like domestic painting, we all know you cannot put fresh paint on a wet wall. So removing excess moisture from the timber is one of the crucial aspects of the pressure treatment process.

After the wood is cut to size, it is placed on a pallet and placed in a special tank. The treatment is poured into the tank, allowing it to deeply penetrate each log. Excess treatment is then removed using a vacuum.

Did you know that cutting the timber before the pressure treatment process is crucial? This ensures that all exposed ends receive the proper treatment, unlike inferior dip treatment methods.

When comparing pressure treatment and dip treatment, it's important to note that while they may appear similar, pressure treatment penetrates the timber, whereas dip treatment does not. It means each timber log is protected inside and out.

Furthermore, any notches or bumps that occur in pressure treated timber, won't expose the log to the elements, this eliminates rotting and insect infestation to your Garden Building.

All our products, including pressure treated Sheds and Garden Offices, come with a 10-year guarantee against rot and fungal decay.

If you are interested in learning more about pressure treatment and the full process, why not read more here.


Which should I choose?

The choice between pressure treatment and dip treatment ultimately depends on you. However, if you have the budget for a pressure treated timber garden building, we highly recommend choosing that option. As they say, you get what you pay for!

As a bare minimum, make sure your building has pressure treated bearers. Our Log Cabins are delivered to you untreated, giving you the freedom to decorate them according to your preference. However, all our Log Cabins come with pressure treated bearers as a standard feature.

These are the logs that will be laid on the cold, damp ground. They need to be pressure treated as they are not easily accessible to annually re apply treatment. Adding pressure treatment to your garden building frame will enhance its robustness, enabling it to withstand various weather conditions with ease.

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