Does a 10mm x 4mm intumescent seal comply for 1/2 hour integrity and a 20mm x 4mm for 1 hour integrity?
This is a fact for:
- the size of the seal
- the position of the seal
- the type of seal used
The type of seal is specific to a manufacturer, all manufacturer's seals don't always give the same performance, this is also the case if they are of the same generic type, e.g. graphite.
It should thereofre be clear that it is not permissable to use differing seal types or manufacturer except and unless there is test evidence provided to demonstrate their compatibility and use.
Chippy for DirectDoors.com