Thermowood® redwood is thermally modified softwood which has been heat treated to over 200°C using a completely natural and non-toxic method. This results in a material which has been especially engineered for cladding applications to achieve enhanced performance in exterior environments, while retaining the beauty of traditional timber.  It is great as a cladding façade on buildings, plus decking and fencing applications.

Thermowood® redwood contains small to medium, frequent knots and has a warm, rich brown colour. If left untreated, the boards will weather to a silvery grey, similar to cedar and larch.

More stable than traditional timber, Thermowood® redwood doesn’t bend, twist or warp. With minimal water absorption and less water content, it is lightweight and very dry in nature which makes it resistant to decay, fungi and insect damage. In addition, being dry gives Thermowood® redwood a very smooth finish for precision machining.

Always seek advice about treatment and after-care to preserve the aesthetics and style you want for your cladding in the longer-term.

Images showcase projects using Lunawood cladding.

• Beautifully machined Thermowood® redwood cladding is available in a range of profiles, machined by our in-house workshop
• Doesn’t bend, twist or warp
• Class 2 ‘Durable’ material
• Moisture content of 5-6% makes Thermowood® redwood especially resistant to rot, lightweight and perfect for precision machining
• Density is 350-480 kg/m3
• Expected service life is 30 years out of ground contact
• Sustainably sourced: PEFC certified
• Available in shiplap, shadow-gap, T&G V-joint (matchboard), featheredge and screen profiles as standard
• Our in-house machining facility can produce a specific, bespoke profile to meet your individual project requirements
• Fire treatment to European Class B available
• Factory applied coatings available, for example paints and stains