Pressure Treated V Dip Treated Sheds

March 22, 2018

Pressure Treated v Dip Treated Sheds

A shed is a great investment for your outside space, whether you use it for storing tools, gardening equipment or even a place to get a bit of peace and quiet. However, with so many different options it can be difficult to know what’s best for you.

For most people, making sure their shed lasts as long as possible, and remains in prime condition are the main priorities. This is where treatments can help, but should you opt for pressure treated or dip treated? Here’s a closer look at the two.

What is dip treating?

Dip treating is a process which is pretty self-explanatory; it quite literally involves dipping the timber into the bath of treatment. The wood is then left soaking in the liquid for a specific period of time. This has the effect of covering the exterior in the treatment but none will soak through to the inner core of the wood.

Dip treatments are easy to apply and much quicker than pressure treatments. This means that dip treated sheds are much cheaper than those which have been pressure treated.

However, although dip treatments are kind on the pocket, there are other costs to be considered in the long run. As the treatment only coats the surface of the timber, it will fade away over time leaving your shed at risk of degrading. To prevent this, you’ll need to apply a treatment every year to maintain the protection.

Dip treated sheds must also be kept off the ground; this prevents unwanted damp and moisture being able to penetrate into the wood and cause decay. A pressure treated gravel board should be installed first to create the necessary barrier.

What are pressure treatments?

The technical term for pressure treatment is vacuum pressure impregnation and is a much longer process.

Before the treatment starts, first the wood must be thoroughly dried out, either using natural air flow or a kiln. This removes all the surplus moisture so the treatment can thoroughly penetrate through the wood.

Once the timber has been dried, it’s cut to size and then placed in a pressure tank. The air is removed via a vacuum and the preservative treatment is poured in. The excess fluid is then removed once more using a vacuum. The low pressure pulls the preservative into the wood, permeating right through the grain and in doing so, treating every inch of the timber.

Pressure treatments don’t wear off in the same way as a dip treatment so are unaffected by the weather. When newly treated, you might be able to see a soft green tinge but this will naturally fade into a silvery grey, or soft honey brown.

Which one should I choose?

There are benefits to both types of treatments and if you can’t afford a pressure treated shed, one which has been dip treated is a great budget alternative. However, the hassle of having to treat the shed each year shouldn’t be discounted; if you want your dip treated shed to last, this really is an essential. This is why many people prefer the high quality and durability of pressure treatment as the timber will be able to resist the worst of any weather, leaving you with a beautiful shed in prime condition for many years to come.