The Comparative Durability of Thermally Modified Ayous
Ayous (Triplochiton scleroxylon) also known as Obeche, Wawa and Samba is a lightweight timber sourced from West Africa.
The species has low natural durability and is considered non durable with the lowest natural durability Class 5 in accordance to EN350-1.
In recent times thermally modified Ayous has entered the market, with the thermal modification process used to increase the natural durability of the wood.
Many vendors of this product compare the timber to species like Teak or Western Red Cedar.
However, thermally modified Ayous may not be suitable for all environments and exterior applications.
The published durability class for thermally modified Ayous is Class 2 EN 350-1.
This is a class below commonly used cladding and joinery timbers such as Western Red Cedar and Abodo’s Vulcan Timber.
Care should be taken when using thermally modified Ayous, and due diligence must be applied to ensure durability is sufficient for its intended use.