Warranty stance and provision of information
Structural floor boards for timber joists that are to be installed as the building proceeds and left exposed must have a third party product approval certificate which covers weather resistance for the period of time the boards are to be left exposed on site.
Structural floor boards and weather resistance
Structural floor boards that are built in as the work proceeds and left exposed to the elements will be subjected to various issues, especially during prolonged periods of precipitation. As such, we require these floor boards for timber joists (both engineered and traditional) to have a third party approval certificate from a UKAS accredited body which covers weather resistance for the period of time the boards are to be left exposed on site.
Any boards that are left exposed beyond the period stated in the third party approval certificate should be replaced.
Please note: A third party product approval certificate for structural floor boarding for timber joists is required regardless of if the floor boards are to be left exposed