Accoya
Botanical Name
Overview
Available Grades:-
Sawfalling excluding 6ths
International Timber sources this material from Finland. It is available with PEFC certification. Thermowood is produced by heat treating selected Scandinavian Pine (Pinus sylvestris) which changes the properties of the timber and turns a non-durable timber into a product with class 2 durability (BN EN 350). This thermal process enhances the chemical and physical properties of the timber providing many benefits which include greater stability, no toxic chemicals or additives, colour darkens to an attractive deep brown, and timber can be cut or trimmed without the need to treat the cut ends. Thermowood will weather over a period of time to a silver grey appearance in areas with low air pollution. Discolouration may occur in some situations.
Cladding, Decking, Saunas
Certification
PEFC
Origin
Finland
Physical Structure
Non-structural, small sound knots
Durability
Class 2 – Durable
Moisture Content
6 – 8%
Working Qualities
Care should be taken with storage and machining as product can be brittle, follow Thermowood handbook guidelinesSupplied Finish
Rough Sawn or machined to profile
Wastage Allowance
15%
Stability
Stable – tangential movement 2 – 3mm
Fire Treatment
Thermowood Redwood can be fire treated, but due to its brittle nature, a 15% wastage factor on end splitting should be calculated
Coating
Due to stability paint manufacturers are happy to provide 3 year – 10 year warranties subject to conditions
Length
3m – 5.4m
