Pre-Aged
Timber

Larch that has been treated with a wood reactive agent that is non-toxic with a grey pigment. We apply this to timber decking and cladding in a factory-controlled environment. We recommend applying the SertiWOOD® Old Look on slow grown Larch that has been selected for its heartwood to ensure that a durable for use UC3 applications i.e. exterior above ground as not all larch is durable.

Upon delivery, if the wood has not been in direct contact with any elements it tends to be a more uniform grey due to the pigment, but if the product has been in contact water e.g. rain, snow etc it will look patchy or will have streaks that are darker and lighter in some areas. The patches will disappear as the timber is fully exposed on installation due to contact with the elements such as oxygen, sunlight, water etc but if you want to speed but the process of uniform greying in SertiWOOD® Old Look you can spray or wash the timber with water this facilitates or speeds up the reaction.

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Inhouse logo for Sertiwood Brand Products for Sustainable Timber Experts (UK)

There is also a tendency to get salty deposits on the surface these can be washed off with water. We recommend washing the cladding with running water to accelerate the weathering and to remove any excess treatment prior to installation this can be done using a garden hose pipe or a bucket and cloth.

Washing the cladding avoids excess treatment running off and encountering other materials which may cause reaction, especially metals, aluminium, tiles, concrete, grass, lawns etc. It is best to mask areas such as glass, any plinths, skirtings etc. If treatment runs onto other surfaces this cannot be washed off or cleaned off.

The treatment is applied in a factory environment, there is no need to reapply any further treatment to make it more grey or uniform – you need to allow the reaction to take place; this starts to even out approximately 1 week onwards from exposure.

If you want to achieve a more grey finish quicker you may resort to touching up onsite by brush with the old look treatment as the last resort but the benefits of this are minimal. It should be noted that wood is a natural product and will still show some variations in colour or tone after treatment. There may be variations in batches and different elevations. The colours can range from grey to a blueish green to black tones.

You need to fix the SertiWOOD® pre-aged weathered treated wood with stainless steel fixings, making sure that the wood is not in contact with any other metals, materials or there is no residue runoff onto other materials from the treatment.

Please contact us if you need any help with the selection or specification of the SertiWOOD® Old Look pre-weathered silvery grey finish for your next project or download the cladding and decking BIM OBJECTS. We keep some products pre-treated for prompt delivery to site.

Profile Options

Pre Aged Timber products are available in the following profiles:

TF1

Timber Profile 5

TF5

Timber Profile 11

TF11

Timber Focus Profile 12

TF12

Timber Focus Profile 23

TF23

Timber Focus Profile 27

TF27

Timber Focus Profile 29

TF29

Timber Focus Profile 52

TF52

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Download BIM Objects

Our BIM Objects can be downloaded from Bimstore or from NBS National BIM Library. Please feel free to contact us for more information.

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