Whether you’re building a new garden shed or you’re adding decking to your garden, you’ll need to think about timber preservation. Timber preservation and treatment is vital to keeping wood, especially wood that’s used outdoors, in good condition for as long as possible. Without treatment, wood is susceptible to damp, dry and wet rot, mould and insects such as woodworm. This is especially the case for softwoods like pine – while hardwoods like oak should still be treated, it’s vital that you have any softwoods around your home treated to keep them from decaying. Luckily, there are plenty of tradespeople that will do that for you.
Why should I have my timber preserved?
Lots of timber that people use for decking and garden sheds comes untreated. If you leave it that way, it won’t be long until moisture gets in and you could end up with damp or rot. Moss and algae are also common on decks if they’re left moist without much sun. There’s also a risk that your timber could become infested with woodworm, which are the wood-eating larva of many species of beetle. They will burrow into the wood and leave lots of small holes and powder as they go.
All of these problems will cause the wood to become weak, and depending on what the timber is used for it could cause serious structural damage, so it’s important to get timber treated to prevent any problems from arising.
Types of timber preservation treatments
- Water-based treatments The most common timber preservative used for outdoor woods, for example on fencing, decking posts, joists and sub-structures, is copper-organic. It’s a water-based treatment that is suitable for timber that is going to be in contact with the ground or fresh water. It doesn’t have a smell and won’t discolour adjacent materials. It can be applied in a specialist pressure treatment facility or vacuum and adds a strong protective layer on the surface of the timber. It gives the wood a soft green colour, but it can have a dye added to give it a brown colour.
If a professional is applying a water-based timber preserver for you outside, make sure that it’s a Class 4 treatment. Class 4 preservatives ensure that any wood that’s going to be subject to moisture for most of its life will last as long as possible. If it’s for an indoor treatment, make sure that it’s suitable for protecting against insect attacks and fungus.
- Oil-based wood preservatives Preservatives mixed with linseed or tung oil penetrate deeper into the wood than water-based timber treatments. This means that generally you’ll get a longer-lasting, glossier finish. The oils repel water so will help prevent damp, mould and rot, but they might give off strong smells. It’s best to ensure you can stay away from the treatment area for a few days, and if inside, make sure there’s plenty of ventilation.
- Solvent-based timber preservatives Solvent-based treatments are great at preventing rot, fungi, decay and mould, and often come as a clear treatment as well as a range of wood tone colours. They’re ideal for exterior projects since there will be a strong smell as the treatment’s applied, so again it’s best to stay away from the area once it’s been treated.
How Much does Timber preservation cost?
Whether you’re constructing your home or property or perhaps you’re simply putting in a deck there’s a need to put timber preservation into consideration. This includes finding a reliable timber preservation company or contractor and determining exactly how much it would cost to have your timber preservation project done. To make sure that any wood you incorporate is well maximized and in top condition for a lengthy period, you’ll have to protect it against rot, mould as well as insects – this process is referred to as timber preservation or treatment. Given the fact that most buildings across the UK largely incorporate untreated timber, this becomes a target for woodworm infestation and if it becomes wet or moist, it can lead to damp or dry and wet rot. In the event whereby any of these issues occur, the wood is made to lose its strength and in some terrible cases can compromise the integrity of the structure. Hence, the importance of having your timber preserved or treated. If you’re looking to kick start your timber preservation project, it’s essential to find out just how much it’ll cost to get the project over the line. In this post, we’re going to give you a good insight into how the timber preservation cost works. Let’s take a look!
When it comes to timber preservation, there are three main methods to select from. These methods include the water-borne treatment (the most popular due to its low cost and high availability), the oil-borne treatment and the light organic solvent preservative. In general, the timber preservation costs depend on the size of your house as well as the extent of the problem. Overall, you can expect to pay within the range of £1000 to £2000 for rot removal, £600 to £1000 for chemical treatment and £500 to £1000 for blanket pesticide treatment. On average you are looking at £301 - £1,151.
Will timber treatment save you money?
In the long term – yes! While it might seem like the cheaper option to use untreated wood for your project and leave it that way, you’ll only end up needing to replace it more quickly.
If you treat any timber you use, both inside your home and out, you’ll get decades of use out of it. If you leave it untreated, it may not even last 10 years outside. And untreated wood used in the construction of your home could even cause structural damage, so it’s definitely more money-saving to spend out on timber preservation now.