How Long Does Timber Cladding Last?

How Long Does Timber Cladding Last?

Timber for Exterior Cladding

Timber cladding is a popular choice for exterior applications, providing a natural and warm aesthetic to the home. Its versatility allows it to blend seamlessly with traditional and modern designs. However, when facing the challenging Australian climate, several factors come into play, influencing the lifespan of timber cladding. So, just how long does timber cladding last?

Timber Cladding Class for Durability

Timber species are often discussed in terms of their durability class. This is because understanding the timber properties allows builders and trades to make decisions about its suitability for certain applications. Each class represents the level of durability and how long the timber can withstand specific outdoor conditions.

Class 1

• Above ground: 40+ years
• In-ground areas: 25+ years
• Examples of Class 1 above-ground timber species:  Blackbutt, Spotted Gum and Ironbark

Class 2

• Above ground: 15-40 years
• In-ground: 15-25 years
• Examples of Class 2 above-ground timber species: Silvertop Ash and Western Red Cedar

Silvertop Ash Shiplap Cladding. Source: Ironbark Cabin

Class 3

• Above ground: 7-15 years
• In-ground: 5-15 years
• Examples of Class 3 above-ground timber species: Brushbox and American Mahogany

Class 4

• Above ground: 0-7 years
• In-ground: 0-5 years
• Examples of Class 4 above-ground timber species: Meranti and Untreated Pine

Timbers such as Pine are ideal for exterior cladding providing they are treated with H3, H4, H5 and LOSP for termite and rot resistance and outdoor use.

Design Factors

The design of the home or commercial property plays a role in the timber cladding choice. A cladding facing the midday sun will age faster than timber that is shaded. This will create inconsistencies in the look of the façade if the timber is not frequently maintained. Additionally, if you prefer a weathered or aged timber left to grey naturally, a stable and hardwearing class 1 timber is required.

Protective Coatings for Timber Cladding

When cladding timbers are exposed to harsh UV rays, saltwater spray, heavy rainfall and strong winds, they can lose their natural colour, split, cup and even rot. To enhance the longevity of timber cladding, protective coatings play a pivotal role. These coatings act as a barrier, shielding the timber from the harsh elements. There are a wide range of coating options available, including oils, stains and paints.

Timber oils penetrate the wood, preserve the natural beauty of the timber and provide protection against moisture and UV rays. Timber stains, on the other hand, offer both colour enhancement and protection. They provide a durable surface layer that helps resist weathering and UV damage.

While some homeowners prefer the natural appearance of timber, others like to paint their cladding for added protection and a customised look. High-quality exterior paints can provide long-lasting protection against the elements.

Regular Maintenance of Timber Cladding

Regular cleaning and maintenance are the key to ensuring long-lasting timber cladding free from rot, decay and termites. To keep timber cladding looking like new, follow these quick tips.

• Use gentle cleaning solutions to remove dirt and debris
• Clean with a soft brush
• Inspect boards regularly to allow for early identification of potential issues
• Address damage or deterioration, such as cracks or loose boards promptly
• Depending on the type of protective coating used, regular recoating is required.

Choosing the Right Timber Cladding

Selecting the right timber cladding means assessing the design, the cladding durability and choosing the best protective coating for the job. Bowens supplies a wide range of quality timber cladding to help make choosing the right cladding easy. If you want to know more about our cladding range, explore timber claddings online or drop into one of our conveniently located stores across Melbourne and regional Victoria.

We also offer pre-coated timber services to provide 360° timber protection, save time and money, and reduce tannin leaching. If you are interested in pre-coated timber cladding, speak to our friendly staff in-store, or find out more about our products and services online today.