We always heard about problems when wood and water are in contact, correct? If you once had to fix your floor or work in a renovation site you know what I meant. But innovation is there to prove we may be wrong.
Accoya project in a bathroom in Sao Paulo, Brazil – Source of the picture – click here
Extensive laboratory and field testing by leading institutes around the world (including in New Zealand, USA, UK, Sweden, Malaysia, Indonesia, the Netherlands and Japan) has shown that Accoya wood performance of acetylated wood is extremely reliable.
But wait: what is the meaning of acetylated wood? The process alters the cell structure of wood, improving its technical properties and making it much stronger and more durable.
Unmodified wood contains ‘free hydroxyl groups’ that absorb and release water as weather conditions change. This makes standard wood susceptible to expansion and contraction, particularly when used outdoors for applications such as cladding, window and door frames. The expansion and contraction of wood often leads to splitting and rotting, impacting on the service life of wood.
Hydrogen, oxygen and carbon chemicals (called acetyl groups) are created within wood after the acetylation process, changing the structure of existing free hydroxyl groups (hydrogen and oxygen). Each of these chemicals is present naturally in all woods, with acetyl created independently from acetic acid, i.e. vinegar. The process is ‘green’ meaning that the acetylation process takes effect using nothing that doesn’t occur in wood naturally.
Accoya® treated wood has been thoroughly tested for dimensional stability, durability, paint retention and in-ground conditions to ensure optimal performance. Indeed, it is so reliable that for many years it has been – and continues to be – used by scientists as the benchmark against which other treatments and modified timbers are measured.
Accoya®’s producers ensure that every batch is of consistent quality and reaches the highest performance standards. With such strong scientific credentials, Accoya® is guaranteed for 50 years when used above ground, and 25 year when used for below-ground applications.
Time will tell if the more expensive price will justify the long term benefits of this process.
Explore more of the beauty of Accoya® wood projects all over the world in their website: https://www.accoya.com/