ThermoWood® Microline Channel Profile

If you’re looking to achieve a contemporary Scandinavian exterior, with cladding that’s built to last, then our ThermoWood Finesawn Microline Channel boards are ideal. The square edged channel provides the bold shadow line that brings any façade bang up to date, while the tongue and groove joint makes it easy to install without visible nails.

Having undergone thermal modification, the Nordic Pine has more stability and durability than in its natural state. And its attractive dark brown tones bring a high-end look to almost any building, whether it’s installed vertically or horizontally.

The Story of ThermoWood

The ThermoWood treatment process is patented and the trademark is owned by the Finnish ThermoWood Association. The roots of this ancient heat and steam treatment date back thousands of years. The natural process permanently alters the wood’s physical properties, improving its stability, durability, thermal insulation and even changing the colour of the wood to a rich dark brown.

High Quality Timber Direct from the Producer

Produced from high quality Nordic Pine grown mainly in Finland, where the sub-zero winters make for straight-grained timber, ThermoWood Cladding is hard, with very few knots and low internal tension. It’s sustainably sourced from well managed forests and supplied with full PEFC chain of custody certification.

The Different Classes of ThermoWood

Thermo-S is for internal use, while Thermo-D can be used externally too. The D stands for ‘durability’ as it has a decay resistance of durability class 2 (durable) according to the EN 113 standard, making it ideal for cladding and decking.

When working with timber it should be expected that although ‘on-grade’, occasional boards may have minor imperfections that will require ‘working’ if you wish to eliminate. Examples include raised grain, small splits, minor handling marks, sticker marks etc – all of which can easily be remedied by trimming, gluing or sanding. In most cases imperfections can be removed with very little effort, and the small amount of off cuts generated as a result will be absorbed in the normal cutting and selection allowance.

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Grades

Silva Timber’s ThermoWood is modified to Thermo-D (Durability) standards. Biological durability is an essential characteristic for end use applications in this treatment category. The average tangential swelling and shrinkage due moisture for Thermo-D class treated wood is 5-6%, Thermo-D class ThermoWood is classified as durable according to the EN113 standard – meeting Class 2 requirements.

This product is PEFC certified.

PEFC (Programme for the Endorsement of Forest Certification) is an independent, non-profit, non-governmental organisation founded in 1999 which promotes sustainably managed forests through independent third party certification. The PEFC provides an assurance mechanism to purchasers of wood and paper products that they are promoting the sustainable management of forests.

PEFC works throughout the entire forest supply chain to promote good practice in the forest and to ensure that timber and non-timber forest products are produced with respect for the highest ecological, social and ethical standards. Thanks to its  eco-label, customers and consumers are able to identify products from sustainably managed forests.

Silva Timber meets the requirements for PEFC Chain of Custody within the BM TRADA Certification Limited Scheme for TRADA - Trak chain of custody certification.

Certificate number: BMT-PEFC-0319