We also have a range of fire rated butt hinges which should be used when installing a fire door to.
Rising fire door hinges.
Rising butt hinges are only suitable for use with wooden doors and are best used in certain applications.
Remove your door if applicable remove the old hinges.
A rising butt hinge may indeed help lift the door a few mm over the carpet however we do not sell fire rated rising butt hinges.
How to fit rising butt hinges to your internal doors.
Another issue you have is that fire doors are created to have a secure and tight seal in the frame to create a barrier against fire.
75mm zinc internal door rising butt hinge fits on left hand side of door.
This type of door will have no gap at the bottom when closed but will lift over thick floor coverings on the opening side.
Current building regulations do not allow for a rising butt hinge to be fitted on a fire door or escape route door.
Mark out the position of the new hinges the rising butt hinge should be laid flat against the rear edge of the door.