Preparation of you timber cladding

Andrew Everist
Posted in Cladding - Oct 05, 2017



It is recommended to keep the packs intact and wrapped

in plastic as they were delivered, out of the elements until

the cladding is ready to be installed. This can help

prevent any movement of the boards after being machined.

This may help accuracy and straightness, making the

installation process considerably easier.




Although the timber cladding has been dried to a moisture content

suitable for external applications, it will still take on moisture

from rain, air conditions and the ground, causing natural

expansion and contraction to occur across the width of

the board. As this expected process can affect the ease of

installation it is best to keep the product dry, stored at least

50mm above the ground and installed as soon as possible.

If you require your chosen cladding to be used internally, this

needs to be specified at the time of order as a different

moisture content is required. Internal applications require a

lower moisture content than external applications, however

in hot and dry areas, cladding may need to be dried specifically

to suit. It is always recommended you talk to your supplier

to make sure you are getting the right product for your job.




Movement is a natural process that causes the timber to

expand and contract as moisture is gained and lost within the

cells of the timber. This movement cannot be stopped and is

expected in all situations. Most claddings have been developed

to allow for this movement and needs to be installed correctly

to prevent issues caused by movement. Please note there

should be a gap around the tongue and groove.




Fully coating your cladding on all sides before installation

can prevent movement and it also helps to protect the cladding

while on site. It is recommended to be factory coated in Cutek,

or any oil based product.

If not factory coated, your cladding needs to be fully

coated before installation. Any ripped edges or end trims

must be sealed by the same product. All coatings will

require recoating and maintenance as per manufacturers





Using dark colours can cause the timber to absorb heat

more than lighter paints and stains. If you are considering

using a black or dark stain it is advised that you face fix your

cladding as there is more chance your cladding will move over time.