As discussed in a recent blog post, the use of timber cladding on the exterior of your home can have numerous structural benefits, as well as improving its appearance stylistically in many cases. To ensure it keeps looking the part, it’s important to maintain and clean it from time to time, as you would other parts of your exterior. This can extend its life considerably and is something that should not be overlooked. This article will discuss a few of the best methods to go about cleaning timber cladding and other things to keep in mind.


Cleaning your timber cladding is an absolute must if you are planning on re-staining or coating, which is a good idea for continued use and getting the most out of your cladding. In the same way, you would thoroughly clean a wall before painting it for the best finish, the timber cladding needs to be spotless when you apply the treatment. When exposed to the elements, surfaces build up grime, moss, mould, oil and a host of other materials that can eventually do damage if not taken care of. So it’s important to clean the surface of dead timber fibres and sanding down before applying any treatment.

Mould build ups

mould causesing poor colouring
More often than not, the mould is going to be what causes the poor colouring on your timber cladding. While it can reduce the appearance significantly, it generally won’t do damage to the cladding unless it is left untouched for a particularly long period, at which point it may actually stain the timber itself. So ideally, you’ll want to get onto of a mould issue sooner rather than later if you notice it.

If you find that you have a persistent mould problem that appears consistently after cleaning the timber cladding surface, there are other measures that can be taken. Anti-mould products are quite strong and may be toxic to nearby plants, however, they are very effective against mould. The ideal time to apply this is after cleaning the surface and applying it when dry. It can be reapplied on a semi-regular basis for the best results.

How to clean the surface

power washing. wooden deck floor cleaning with high pressure water jet.

Once the surface has been sanded and is free spotless, you will need to go for a deeper clean. Exterior timber cleaning products are always a good bet – they are fairly easy to apply and not too expensive either. These acid-based treatments are frequently used on decks and other exterior woodwork and can work very well on timber cladding too. The treatment can often be sprayed directly onto the cladding and you should notice the difference right away.

Pressure washing is also an excellent option and will give the surface the deepest clean of dirt and materials that have built up. A home pressure washer can be somewhat expensive but given its varied uses, it may be a good investment depending on your specific needs. Otherwise, you can speak to a professional to take care of it for you.

To get the most out of your timber cladding, it’s important that you take care of it and keep it in good condition. Otherwise, if you somewhere resides in Melbourne and looking to replace it, talk with the experts from O’Sheas Timber & Trusses for the best prices on external timber cladding, trusses, other building materials and a great customer service too.