As Timea explains, traditionally, for applications where the plasterboard aperture has been cut too large and fire batt has been installed pattress fitted on each side, we have provided an extra-long fire sleeve around plastic vent ducts. However, we now have a solution using our standard QRS Slim Sleeve that can be installed in each pattress-fitted batt. This is available from stock. To learn more, go to our standard firestopping installation detail download page or contact us.
