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Siberian Larch, Siberian Larch Cladding
Siberian Larch Cladding Shadow Gap Profile
High-quality cladding made from slow-grown premium Siberian Larch. This profile provides a dynamic, false central shadow gap on a single board. A unique profile with twice the impact and half the fuss! Narrower, sharper profile definition with half the fitting time, a spin on this popular trending choice of cladding.
- Produced from slow grown premium Siberian Larch Timber and carefully kiln dried to approx. 16-18% (+/- 2%)
- Can be treated to achieve fire classification: Euroclass B-s1,d0
- Cladding sections can be fitted horizontal and vertical
- Smooth Finish, sharp edges, 8mm visible shadow gap
- Natural colour – not oiled
| Price excl. vat ( VAT added on checkout ) | m2 price | l/m price |
| 20 x 120mm | (A Grade) £49.49 (B Grade) £41.49 |
£5.94 £4.98 |
Lead time: 2 – 10 days
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£14.94 – £30.29
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A unique profile provides a dynamic, false central shadow gap with twice the impact
Siberian larch shadow gap profile with twice the impact and half the fuss! This cladding profile provides a dynamic, false central shadow gap on a single board. Narrower, sharper profile definition with half the fitting time, a spin on this popular trending choice of cladding. Shadow Gap Cladding works in the same way as standard creating a pronounced 5mm square shadow gap which uses natural sunlight to visually enhance the building but is modified to have an extended top half to the rear of the piece allowing for a nail to be covered over after fixing. A modern and striking profile free of any visible fixings.
The shadow gap profile is stable and tight. It’s incredibly easy to install with no visible nails. The bevel, where two boards meet, creates a small gap along the joint, making it the perfect choice for wood paneling for a contemporary look.
Siberian larch is valued for its tough, waterproof, and durable properties. Siberian larch cladding is a great choice for a variety of projects, from large construction to small home improvement. Siberian larch cladding was specified for residential and commercial applications – including schools, shops, and sports facilities.
Siberian larch wood is resistant to rot when it comes into contact with the ground. Over time, under external conditions, natural Siberian larch soils acquire a gray shade without losing their durability. However, if the natural color of the wood is to be retained, this can be achieved on site with a UV protective cover oil. This higher density wood is not easily damaged, making it ideal for high traffic areas or applications where there is a risk of physical damage such as bumps or scratches.
Siberian larch cladding does not require any additional treatment and can be installed in its natural state.
Other Siberian Larch Cladding Profiles
Beauty, durability and stability — Siberian Larch is a premier softwood when it comes to exterior cladding. Horizontal and vertical, our range covers many different profiles: Rainscreen, Smooth, Tongue and Grove, Channel, shadow gap and more coming soon.
Technical specifications
| Wood type: | Siberian larch (Larix sibirica) |
| Cladding treatment: | None |
| Density: | In dry state approx. 628 kg m³ |
| Lifespan: | Proven life expectancy of 50+ years |
| Quality class: | A+, A, AB (A and B mixed) Grade and quality description (PDF) |
| Humidity: | Dried up to approx 16-18% (+/- 2%) |
| Purpose: | Outdoor use |
| Other uses: | Decking, Cladding, fencing, joinery, flooring |
| Dimensions (mm): | 20 x 95 / 120 / 145 mm |
| Origin: | Sustainable forests of Northern Russia (Siberia) |
| Available length: | From 2 to 4 m |
| Appearance: | The wood come in a warm mix of colours, from light yellow brown through to golden browns with a strong grain, similar to pine. Depending on the grading, the boards may contain a few dark knots. |
| Weathering: | When the boards weather, the color changes to beautifully consistent silver gray, which is highly desirable in many cladding projects. |
| Insect attack: | Resistant |
| Treatability class: | Resistant |
| Movement class: | High (A 145mm board can vary 3-4mm over the year.) |
| Impact resistance: | High |
| Scratches and abrasion: | Resistant |
| Fire treatment: | Possible by impregnation. Can be treated to achieve fire classification: Euroclass B-s1,d0 |
| Working characteristics: | Good workability. Receives fixings satisfactorily. |
| Extracts: | Siberian larch is more likely to contain resin than oil or tannin. The resin is fixed by firing and does not tend to bleed out. Larch is fairly consistent and non-reactive and, as such, becomes relatively evenly weatherproof. |
| When to fix: | Ideally autumn / winter months. |
| How to fix: | Face fixation with stainless steel ring thigh nails. Pre-drilling recommended. |
Siberian larch properties
Durability
Siberian Larch wood is naturally durable (Class 3 according to BS EN 350-2) – and therefore ideal for outdoor purposes – due to a combination of factors:
- The chemical composition of the wood creates a high resistance to rot and decay, which makes Siberian Larch one of the hardest and most durable softwoods.
- High density – this means that it is more difficult for decaying organisms to penetrate the wood.
- Long lifespan – lifespan of approx. 50-100 years with correct detailing and general outdoor exposure. Better durability properties can only be achieved with Accoya wood.
The natural durability of Siberian Larch means that no treatment of the wood is required and any coatings applied are for aesthetic purposes only.
Density
Due to the high percentage of heartwood (75-90%) and the minimal proportion of sapwood, Siberian Larch is an extremely dense timber, which is classified by BS EN 350-2 as approximately 630 kg / m3 with a moisture content of 18%. As such, it is not easily damaged, making it ideal for highly exposed elevations, or applications where there is a likelihood of damage such as bumps or scratches.
Stability
The extreme continental climate in Siberia (Russia) produces a high proportion of late wood, which provides enhanced dimensional stability and enables a smoother machine finish.
In addition, our Siberian Larch is kiln-dried to around 16-18% (+/- 2%), the optimal moisture content for outdoor use. This moisture level is retained until delivery on site, so your Siberian Larch wood can be installed immediately. The benefit of kiln drying Siberian Larch, as opposed to air drying it, is that the timber dries uniformly and therefore achieves optimum stability.
Improved dimensional stability performance can be achieved by using narrower widths, for example 120mm and 95mm.
Size
Our Siberian larch decking, cladding and sawn timber are available in various lengths, from 2m up to 4m. The standard board dimension is approx. 150mm, as this is traditionally the most commonly produced width. However, we also offer a range of other widths: 95mm, 120mm and 145mm. The narrower board widths offer a number of advantages, including a wider choice of design options and improved dimensional stability. As an added benefit, narrower board widths are generally rated well beyond their specification.
Cladding is supplied per linear metre based on random stock lengths at the time of order picking. Other sizes may be available on request.
Note: The board widths can change due to changes in moisture content. The boards are kiln-dried to approx. 16 – 18% before processing. Cladding width can slightly vary between production and installation on site (+/- 2mm). Siberian Larch cladding is shipped in certain sizes from our warehouse, but a margin of error should be allowed for when making cladding calculations, due to the natural expansion and contraction of the wood.
Siberian larch timber quick tips
Siberian larch timber is blessed with many natural properties which makes it low-maintenance. The high level of resin in the wood provides natural protection against rot and decay. However, there are a few things you can do to treat and care for the Siberian larch to increase its longevity.
1
Prepare the wood
Sort your lengths
Sort your lengths. Make sure you’ve set them all up. We recommend ordering 10% more to cover waste material.
2
Know your tools
USE PROFESSIONAL EQUIPMENT
Siberian larch is very hard and dense wood. Use professional equipment for best results.
3
USE QUALITY FIXINGS
Use stainless steel
We recommend using only high quality stainless steel screws to avoid corrosion and stains on the wood.
4
TREAT WITH OIL
APPLY UV PROTECTIVE OIL
OSMO wood protection offers effective multiple protection against UV rays and harsh environmental conditions.
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