Certification in the wood preservation sector
Construction cladding used outdoors and simple to install.
They are made of strips of timber on appropriate supports (cleats, battens or a frame). Related products are, for example, clapboards and planks of various sizes.
They are suitable for the uses described in the DTU [unified technical document] 41.2 that specifies, for example :
• use classes 3.1 to 4 according to the usage situations (exposure)
• expected durability
• these products are subject to CE marking in compliance with with standard EN14 915
CTB-B+ treated wood ensures the service life of the cladding inservice. To ensure its durability, the
installation rules for these products laid down in DTU 41.2 should be observed. According to treatment procedures
and type of product used, an additional finish may be required.
Timber cladding weathers with time and maintains its durability afforded by the CTB-B+ treatment. Its aesthetic appearance is maintained by cleaning using a brush and/or water jet (high pressure prohibited) or by the application of decorating products.