WESTERN RED CEDAR
Western Red Cedar (Thuja plicata) weatherboards are compliant for above ground use in accordance with New Zealand Standard NZS 3602: 2003 Timber and Wood-based Products, specifically B2.3.1 (b), for use in building and when fixed above ground, exceeds the minimum 15 year durability requirement.
LARCH
European Larch (Larix sibirica)
Larch is utilised in horizontal and vertical cladding profiles that are compliant with Branz Bulletin 411. Siberian Larch timber grade supplied by Rosenfeld Kidson & Co Ltd is a mixture of Grades I, II, and III, called Unsorted I-III. The Unsorted I-III grade of Larch is compliant with NZS3631:1988 NZ Timber Grading Rules. Larch is independently appraised to show compliance with B2.3.1 (b).
The Larch supplied by Rosenfeld Kidson & Co Ltd has a factory applied oiled finish using Dryden WoodOil. The Larch profile types supplied are available in a band sawn face (BSF).
TRUWOOD®
Thermally modified Ayous
Truwood is utilised in horizontal and vertical cladding profiles that are compliant with Branz Bulletin 411. Truwood is a thermally modified, clear grade, low density hardwood. Truwood is produced using the latest thermal modification technology, which involves applying heat at 160 – 230°C, water vapour and pressure to the timber.
The thermal treatment provides a rich Teak coloured timber with great properties of durability and stability without any chemical treatment, resins or glues - just heat and wood. Truwood is independently appraised to show compliance with B2.3.1 (b).
The Truwood supplied by Rosenfeld Kidson & Co Ltd has a factory applied finish using Sansin WoodForce.