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ThermoWood® Pine Optima Channel 10 Cladding

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Silva ThermoWood® is an attractive, sustainable solid wood material produced using a chemical-free natural process involving heat and steam. This thermal modification process makes it durable, dimensionally stable, resin-free, and even changes its colour to a pleasing warm brown. 

This ThermoWood Channel 10 profile is part of the Optima Series, a range of precision machined profiles that feature unique design details that make them easier to install and to help them perform better. Cladding profiles in the Optima series feature a discreet nail line for ease of installation together with a substantial overlap where the boards connect to accommodate the natural movement in wood.

It is possible to install the Optima Channel 10 profile either horizontally or vertically. A square-sided recess where the boards meet creates bold shadow lines that will accentuate either the height or width of the façade. Boards connect with a tongue and groove system for easy installation.

Before purchasing, please read the full product description and technical information in the tabs below.

Wastage Allowance
We recommend adding an additional 10-15% over and above your initial requirements.

Delivery
Items listed as 'in production' have an extended delivery lead-time of up to 5 weeks. Standard delivery lead-times apply to all other products.

There is a £450 (ex VAT) / £540 (inc VAT) minimum basket value applicable to all orders containing cladding, decking, and fencing products. Read the full details.

Leadtime:

2 weeks for in stock items.

Up to 5 weeks for items in production.

Cost:

£45.00 / £95.00 / £145 / £195.00 / POA depending on location.

You can view our detailed delivery charges and services here.

Please note: As with most building supplies, delivery is to the kerbside only.

Scheduled Collection

Leadtime:

Typically within 48 hours (subject to stock availability).

Up to 5 weeks for items in production.

Cost:

Free.

movement in the wood without exposing a gap.

Optima Features

  • Tapered tongue and groove for faster installation.
  • Wide fixing area.
  • Large area lowers the risk of water ingress.
  • 10mm overlap to accommodate movement.
  • Hidden fixing.
  • 10° bevel on recess creates an attractive profile.

Key Properties

  • Colour: An attractive warm brown colour consistent throughout the section of the piece.
  • Durability: Silva ThermoWood has a decay resistance of durability class 2 (durable) according to the EN 113 standard. A service life of 30+ years can be achieved, or 60+ years if a surface coating is applied at the outset and maintained periodically.
  • Stability: The lower equilibrium moisture content and the changes in the chemical composition of the wood during the heat treatment process make Silva ThermoWood less able to absorb and release water, thereby improving dimensional stability.
  • Density: The density of Silva ThermoWood is 350 – 480kg/m3 when its moisture content is 6% (typical for RH = 65%, t=20° conditions).
  • Thermal properties: According to VTT tests, ThermoWood’s thermal conductivity λ10 is in the region of 0.099 W/(m K). The corresponding value for untreated kiln-dried European Pine is 0.12 W/(m K).
  • Grading: To ensure Silva ThermoWood products meet the highest quality standards, only specially selected sound (live) knotted wood is used in the production process. The quality of sawn timber is controlled with a general grading system according to the number, quality, location, and size of the knots and other features. The quality grade used to produce Silva ThermoWood is A/B. 
  • Sourcing/certification: Silva ThermoWood is sourced from well-managed and sustainable forests that are fully certified under the Pan European Forestry Certification (PEFC) scheme.

Optional Extras

  • Coatings: ThermoWood has a lower water absorption rate than non-heat-treated wood. To overcome this, Silva uses a specially adapted formula of Sansin Enviro Stain – called SDF HT - which has been developed specifically for use on heat-treated wood.
  • Factory coating service: Silva ThermoWood Optima Channel 10 can be supplied factory coated. Having the coating pre-applied on all sides enables it to be installed at any time of year, regardless of the weather or temperature. Please Contact Us for a quotation.
  • Silva ThermoWood corner solutions: Select from our range of co-ordinating corner trims.
  • Silva ThermoWood fascia and trim boards: View our range of Silva ThermoWood boards. Available in 3 widths, they are perfect for fascias, barge boards, door and window reveals, and many more uses.

This ThermoWood® Optima Channel 10 Cladding is graded on one face only. Boards are not reversible and, as such, some surface/roller marks may be expected on the rear of the boards.

Click here for more detailed information on our full range of Silva ThermoWood cladding.


Our standard delivery network is within a local postcode radius of a Beesley & Fildes Branch. However, many items can be delivered outside of this radius and nationwide subject to a separate haulage quotation. Subject to terms and conditions. For more details on the delivery service we provide, using our modern fleet of crane-off and flat-bed vehicles or nationwide 3rd party haulage. 

For more details please read our full Delivery Policy.