Thermowood Cladding



Thermowood is produced by heat treating selected Scandinavian Redwood that is conditioned in a unique continuous kilning process, heating the timber to 212 Celsius whilst protecting it with steam. This thermal process enhances the chemical and physical properties of the timber providing many benefits the main one being increasing the durability of the timber from class 4 to class 2 as detailed in BS 8417. It is a very stable product and on average is 40% more stable than a non modified redwood and if left untreated, when exposed to rain and sunlight, it will go an attractive silver grey colour.

Tech Specs

Botanical Name : Pinus Sylvestris

Wood Type : Softwood

Origin : Scandinavia

Sustainability : From well managed forests PEFC – other certifications available on request

Durability : Durable Class 2 as per BS 8417

Stability : It is of a brittle nature but is very stable with low shrinkage, warping and twisting

Density : 510 kg/m3

Thermal Conductivity Rating (U Value) : 0.107 W/m2 K

Availability : Sawn, planed and profiled products in a limited range of thicknesses, widths and lengths

Commercially Available Grades in the UK : Thermowood D (Durable) Pine

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