ThermoTimber^® Cladding

ThermoTimber^® is an environmentally sound alternative to pressure-impregnated wood and is resistant to demanding weather conditions, fungi and rot. Because of its decay resistance, low moisture content and thermal conductivity. ThermoTimber^® is a dimensionally stable and durable wood product with improved insulation properties. ThermoTimber^® keeps its shape and stands up to challenging climate conditions with recommended care and maintenance.

ThermoTimber^® is a very popular choice for exterior cladding, decking, and facades and fencing. Because ThermoTimber^® is resin and pith free, you can easily apply glue, paint, oil finishing or surface treatments like a fire-retardant coating or simply leave it natural. Our ThermoTimber^® is also an ideal material for interior panelling, flooring, furniture, and other building components. Due to its excellent properties, ThermoTimber^® is also a popular choice for sauna interiors and exterior hot tubs.

• 100% natural processing with no chemical additives, biodegradable and recyclable
• Third-party certification under FSC®, PEFC™ chain or custody or both ensures full traceability of the raw material from sustainably managed forests
• Superior performance outdoors, indoors or in different weather conditions thanks to special thermal treatment
• Possesses high dimensional stability, durability and decay resistance, has colour uniformity and reduced thermal conductivity
• No resin leakage, easy to paint or apply surface treatments

ThermoTimber^® Specifications

Applications:- External and internal cladding and decking - Fencing

Heat treatment classes:- Two standard thermal modification classes – Thermo-D and Thermo-S.

Durability:- Thermo-D is falling into durability class 2 (EN 350).

Resistance to rot:- Without additional treatments ThermoTimber^® by is not resistant to termites.

Dimensional stability:- The thermal treatment process greatly reduces wood’s tendencies to warp, swell or shrink in different humidity conditions. The wood’s equilibrium moisture balance may be decreased to less than 40–50 % compared to untreated timber.

Thermal properties:- 0,09 W/(m K) according EN ISO 13787 + EN 12667

Resistance to fire:- D -s2,d0 according SFS-EN 13501-1:2018

Leaching:- As no substances are added during the ThermoTimber^® process, no chemical leaching will occur. In addition, as the resin is removed during the process, the problem of resin leakage through the knots or pitch pockets is removed.

Ecological and safe:- ThermoTimber^® is produced using high temperature and steam. Since no chemicals are added during the process ThermoTimber^® contains only renewable substances. Disposal of offcuts can be burned or given into the normal waste system.

Shadow Gap and PTGV Calculator

* Please note these are guide calculation. When placing order please give all dimensions required.

Area to clad sqm    Select Board Width 65 mm 117 mm 143 mm   

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Rainscreen Calculator

* Please note these are guide calculation. When placing order please give all dimensions required.

Area to clad sqm      Select Open or Closed Closed Open (presumed a 6mm gap)    Select Board Width 65 mm 117 mm 140 mm   

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PAR Calculator

* Please note these are guide calculation. When placing order please give all dimensions required.

Area to Clad sqm    Select PAR Width 65 mm 120 mm 140 mm    Gap between Board mm

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Board on Board Requirements Calculator

* Please note these are guide calculation. When placing order please give all dimensions required.

Area to Clad or Fence sqm    Width of Board 1 140 mm65 mm mm    Width of board 2 65 mm140 mm mm     

Please call us on 01460 281225, or email for any additional information or to place a order. Or use our Contact form