Fire retardant timber cladding
The safety of a building’s occupants and users is of paramount importance to the design of any structure, and the appropriate fire performance should be considered for all components used in any construction. For wood panelling and cladding it is the reaction to fire performance which is taken into consideration.
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Timber cladding fire performance
Timber elements can be used in a wide variety of structural applications with no special treatment necessary, but certain situations may require an improved reaction to fire performance as dictated by building regulations. Improved reaction to fire performance can be achieved with timber cladding, through the use of flame retardants, up to Euroclass B-s1, d0.
Non-toxic fire retardant for timber cladding
Russwood can arrange for appropriate flame retardant treatment of our timber cladding, where required, with the Burnblock® system. Unlike many other fire retardants on the market Burnblock is non-toxic, consists of 100% natural ingredients, and has a GOLD-level Cradle-to-Cradle Certificationᵀᴹ.e use of flame retardants, up to Euroclass B-s1, d0.
The integrated Burnblock® and SiOO:X System
Thanks to a groundbreaking system from Russwood, architects and designers can now achieve a coloured finish alongside fire retardant treatment. This industry leading innovation allows for the combination of Burnblock® Fire Retardant and SiOO:X Wood Protection, making it the sole certified system of its kind in the UK. The integrated Burnblock® and SiOO:X system has undergone comprehensive fire testing according to EN 13501-1 standards, achieving a Euroclass B-s1, d0 rating. This system uses a specially developed version of SiOO:X, available with Russwood’s own audited and CE mark certified process for applying the system on fire retardant treated timber.
Burnblock®
- Non-toxic and environmentally friendly
- CE marked timber cladding – classified under EN14915:2013
- Interior and exterior conditions
- Factory impregnated fire retardant process with full 3rd party certification
- Reaction to fire classification up to B-s1-d0
Find out more
Fire performance classes
Reaction to fire performance of timber cladding is defined under EN 13501-1. Find out which class you need.
Burnblock® fire retardant treatment
Burnblock® is a 100% biodegradable and natural, market leading fire retardant solution.
Fire retardant treatment process
Russwood work with experienced specialist Burnblock® applicators, to provide our timber cladding with the fire classification required.
Euroclass B or C fire rating
Under Euroclass B or C rating, it is necessary to treat the timber with a flame retardant.
Euroclass D fire rating
A Euroclass D rating can be achieved under CWFT rules where certain conditions are met.
Species suitability
The following species are suitable to for Burnblock® fire retardant treatment.
Accoya®
A modified timber with outstanding dimensional stability and unrivalled durability properties, which make it ideal for factory-coating.
Architect Select® Larch
Architect Select® Larch is Russwood’s premium grade of vertical grain European Larch.
Lunawood Collection
Lunawood Collection is based on Scandinavian design combined with the best technical properties of thermally modified wood.
Scotlarch®
Our Scottish Larch (Scotlarch®) is sourced locally and a cost-effective cladding solution.
Thermopine®
Thermally modified Scandinavian Scots Pine, modified using only heat and steam.
Thermopine® Clear
Made from clear-grade, thermally modified New Zealand plantation-grown Radiata pine, Thermopine® Clear is distinct from Thermopine® and offers a sustainable alternative to Western Red Cedar cladding.
