Product name SILVALarch™
Material Timber / wood
Dimensions (mm) 21x44 / 21x96 / 21x121 / 21x146
 
 
 

SILVALarch™ boards are produced from the highest quality slow-grown Siberian Larch from the Irkutsk region of Russia. Wood from this harsh climate is much sought after for its natural growth characteristics – exceptionally slow-growing, therefore dense with tight grain.

Siberian Larch is valued for its properties and performance characteristics. It is strong and durable, possessing unusually high levels of resin, giving it a natural resistance to decay.

With its lustrous golden-brown colour and striking grain patterns, SILVALarch has a highly attractive appearance. Its good looks and physical/mechanical properties make it much sought after for exterior applications, particularly as a cladding material.

SILVALarch boards are used for open-jointed cladding, fascia, barge boards, door and window reveals, corner trim, fences, horizontal slatted screens, and many more applications.

Specification

  • Sizes: 21x44 / 21x96 / 21x121 / 21x146mm.
  • Grades: available in three grades. Each is hand-selected from the highest quality slow-grown Siberian Larch to meet Sliva Timber's stringent in-house quality standards.
  • Profile: boards.
  • Surface texture: smooth.
  • Moisture content: kiln-dried at source to 16-18% (+/-2%).

Key properties

  • Colour: Overall - a lustrous golden-brown. Closer inspection reveals a range of colours varying from the creamy white of the narrow sapwood to the straw-coloured or dark, reddish-brown of the heartwood.
  • Durability: 50+ year service life. Decay resistance of ‘Class 3 Moderately Durable’.
  • Stability: Low permeability means it can cope with varying levels of humidity without absorbing much water, therefore it will not shrink or swell excessively in service.
  • Density: Extremely dense and hard timber that's able to withstand knocks and scrapes. Weighs 570-650kg/m3 when dried to 12% moisture content.
  • Thermal properties: Coefficient of thermal conductivity (k) of 0.13W/m°C at 12% moisture content. Insulation value is approximately 15 times better than masonry, 400 times better than steel, and 1770 times better than aluminium.
  • Acoustic properties: Can dampen vibrations making it particularly effective for use as interior panelling.
  • Kiln-dried: This process improves dimensional stability, permits the immediate application of a coating, and enables installation with minimal site acclimatisation.
  • Grading: Available in 3 grades
    - SILVA A grade offers a clean, relatively knot-free appearance and is ideal for design-led projects.
    - SILVA B grade displays well-interspersed knots with some boards free or practically free of knots.
    - SILVA C grade is a more rustic grade, which is less restrictive on size and frequency of knots.
  • Sourcing/certification: SILVALarch is sourced from sustainable forests in the Irkutsk region of Eastern Siberia, Russia, and comes with FSC chain-of-custody certification.

Silva Timber recommends adding an additional 10-15% over and above initial requirements to allow for wastage.


SILVALarch™ boards are produced from the highest quality slow-grown Siberian Larch from the Irkutsk region of Russia. Wood from this harsh climate is much sought after for its natural growth characteristics – exceptionally slow-growing, therefore dense with tight grain.

Siberian Larch is valued for its properties and performance characteristics. It is strong and durable, possessing unusually high levels of resin, giving it a natural resistance to decay.

With its lustrous golden-brown colour and striking grain patterns, SILVALarch has a highly attractive appearance. Its good looks and physical/mechanical properties make it much sought after for exterior applications, particularly as a cladding material.

SILVALarch boards are used for open-jointed cladding, fascia, barge boards, door and window reveals, corner trim, fences, horizontal slatted screens, and many more applications.

Specification

  • Sizes: 21x44 / 21x96 / 21x121 / 21x146mm.
  • Grades: available in three grades. Each is hand-selected from the highest quality slow-grown Siberian Larch to meet Sliva Timber's stringent in-house quality standards.
  • Profile: boards.
  • Surface texture: smooth.
  • Moisture content: kiln-dried at source to 16-18% (+/-2%).

Key properties

  • Colour: Overall - a lustrous golden-brown. Closer inspection reveals a range of colours varying from the creamy white of the narrow sapwood to the straw-coloured or dark, reddish-brown of the heartwood.
  • Durability: 50+ year service life. Decay resistance of ‘Class 3 Moderately Durable’.
  • Stability: Low permeability means it can cope with varying levels of humidity without absorbing much water, therefore it will not shrink or swell excessively in service.
  • Density: Extremely dense and hard timber that's able to withstand knocks and scrapes. Weighs 570-650kg/m3 when dried to 12% moisture content.
  • Thermal properties: Coefficient of thermal conductivity (k) of 0.13W/m°C at 12% moisture content. Insulation value is approximately 15 times better than masonry, 400 times better than steel, and 1770 times better than aluminium.
  • Acoustic properties: Can dampen vibrations making it particularly effective for use as interior panelling.
  • Kiln-dried: This process improves dimensional stability, permits the immediate application of a coating, and enables installation with minimal site acclimatisation.
  • Grading: Available in 3 grades
    - SILVA A grade offers a clean, relatively knot-free appearance and is ideal for design-led projects.
    - SILVA B grade displays well-interspersed knots with some boards free or practically free of knots.
    - SILVA C grade is a more rustic grade, which is less restrictive on size and frequency of knots.
  • Sourcing/certification: SILVALarch is sourced from sustainable forests in the Irkutsk region of Eastern Siberia, Russia, and comes with FSC chain-of-custody certification.

Silva Timber recommends adding an additional 10-15% over and above initial requirements to allow for wastage.


 
 
 
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