Manufactured from timber sourced from sustainable forests, Stellac and Luna Wood Thermowood Clear Pine is PEFC certified, offering a sustainable alternative to tropical hardwoods. When left untreated and exposed to the elements, it will silver down to a beautiful natural finish. The product lifetime is thirty years as assessed by the BRE. The BRE is a general expectation of Thermowood generic. International Timber is the only company in the UK to offer a ten year underwritten guarantee against rot.
Thermowood is produced by steam heating premium quality pine sourced from Finland, to temperatures in excess of 212 centigrade. The heat penetrates to the core of the wood, driving out moisture and resin and eliminating leakage through knots. Clear pine has no visible knots on the face and two edges, which is what differentiates it from ordinary pine. The resulting product is more stable and durable with high resistance to moisture or decay caused by fungi, making it ideally suited for use as an external cladding material.