Naturally durable Siberian Larch cladding
SILVALarch™ cladding is produced from the highest quality slow-grown Siberian Larch from the Irkutsk region of Russia, an area that experiences long cold winters and short summers. Wood from this harsh climate is much sought after for its natural growth characteristics – exceptionally slow- growing and therefore dense with tight grain. With immediate access to a plentiful supply of old-growth logs from this vast forest area, our supplier is able to provide us with Siberian Larch of an exceptional quality that far exceeds the official 'GOST 26002-83' grading standards.It is important to note that Siberian Larch (Larix sibirica) is not to be confused with European Larch (Larix decidua, Larix europaea), which grows mainly in continental Europe and also here in the UK. Although related, Siberian Larch has different physical properties and is widely regarded to be a superior material. Notably it has a different appearance, it is more dimensionally stable, denser and more durable (due to its growing conditions) than its European cousin.
SILVALarch™ V-Joint weatherboarding is available exclusively through Silva. It is sustainably sourced from well managed forests and supplied with full FSC chain of custody certification.
The Benefits of SilvaLarch:
Warm-toned with distinctive grain patterns, the wood of Siberian Larch has a highly attractive appearance. The heartwood is golden to reddish-brown and is sharply defined from the narrow light-coloured sapwood. The annual rings are clearly marked by a difference in colour between early wood and late wood, giving the wood attractive figure and a pleasing aesthetic.
The natural durability of Siberian Larch is due to extractives present in the wood; in particular the phenolic compounds of the heartwood which have a toxic effect on certain rot-causing fungi.
Properly finished and maintained, Siberian Larch will have a service life of 50+ years. It has a decay resistance of durability class 3 (slightly durable, moderately durable) according to the EN 113 standard.
Siberian Larch has low permeability, so it can cope with varying levels of humidity without absorbing much water, and thus will not shrink or swell excessively in service. It is classified by TRADA as having ‘small’ moisture movement, though as a comparison, it is less dimensionally stable than Western Red Cedar.
The hardness of Siberian Larch, which is highly correlated with its density, makes it difficult for water and fungi to penetrate the wood. This has a positive effect on coating performance, helping to maintain a better appearance and reducing maintenance.
Widths and Lengths
SILVALarch™ V-Joint weatherboarding is available from stock in the following sizes:
Widths: 21 x 146mm
Lengths: see drop down menu above
SILVALarch™ is kiln dried to a moisture content of 16-18% (+/-2%), the optimal moisture content for external cladding in the UK. Among its many benefits over air drying, the kiln drying process enables the boards to dry uniformly to achieve optimum dimensional stability. It also enables immediate application of coatings and minimises site acclimatisation. For more information on the benefits of kiln dried timber click here.
Silva Timber: A Leading Importer of Siberian Larch
Silva is one of the UK’s largest importers of Siberian Larch. With direct links to some of the biggest and best Russian sawmills we can offer a wide range of Siberian Larch products in large volumes as well as smaller orders. If you are a manufacturer or reseller then talk to us about your Siberian Larch requirement.
Save time and money - order your SILVALarch™ cladding factory coated
When coated with a suitable finish such as Sansin Enviro Stain, the natural colours and unique grain patterns of Siberian Larch will come alive and project a warmth and beauty that will make your project look stunning.
Save time and money by ordering your SILVALarch™ slatted screen boards factory coated. It’s delivered to site ready to install at any time of year.
A complete range of cladding materials
In addition to cladding our product range includes Tyvek® breathable membrane, stainless steel nails, door / window trim, soffits, fascia, barge boards, corner trim and a wide range of finishes and cleaning products.