The Accoya® guarantee period is for 50 years in hazard classes 1, 2 and 3. These include timber cladding, windows, doors, conservatories and most other external joinery in the British Standard classification system.

The Teknos joinery range of factory applied coating systems are now available with 12 YEAR and 10 YEAR WARRANTIES on fully factory finished opaque and translucent coating systems. The warranty is available on exterior joinery manufactured from Accoya® timber and covers embrittlement, flaking or cracking of the coating system as a result of a coating manufacturing fault.