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Everything you Need to Know about Pressure Treated Timber Cladding

Updated: Nov 8, 2022

Timber is the perfect material for cladding. It is reliable and easy to work with. To ensure you get the most out of your timber cladding, you may want to treat and preserve the timber depending on the specie selection and natural durability. This will help protect the wood from rot and decay and mean your cladding lasts even longer. So what kind of treatment should you be looking out for?

Timber used for interior purposes will most likely be safe from decay. As long as wood is dry, it isn’t vulnerable to decay. But for timber used for external buildings and design, avoiding the rain is unlikely. This means they need to be adequately protected and treated.

Treating wood is highly dependent on the timber species.

Pressure treated timber will be green initially, however this colour will fade to the natural colour of the timber over time. There are treatments available on the market such as NORclad Brunnea which contain a brown pigment, masking this green appearance initially, and offering a level of colour stability for the timber VS traditionally ‘green’ treated timbers.

When pressure-treated timber is installed, it is likely that it will be cut to shape. Any cuts that expose new wood surfaces should be treated with an appropriate treatment/ end seal. This can be done manually with a brush. This is referred to as brush applied or drip treatment and will help ensure all the wood is adequately protected.

For help choosing the best timber cladding for your next project, contact us today.




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