Tenmat’s Vent Duct OverSleeve is a firestop penetration seal
designed to fit around Semi Rigid PE Ducting that pass through
fire rated partitions.
The OverSleeve is fire tested to EN 1366-3 in plasterboard
partition walls and classified to EI120 according to EN 13501-2.
The testing was carried out with Uncapped/Uncapped pipe end
configuration as required for ventilated systems.
The low profile (4mm thick) OverSleeve is supplied flat and can
be wrapped around the ducting and resealed with the reinforced
foil backing tape. It’s design allows the product to be retrofitted to existing ductwork if needed.
• EI120 Fire Rating
• Can be retrofitted
• Low Profile
• Only one layer required
• No additional metal sleeving or support required
• Tested in min. 100mm Drywall / Solid Walls
In a fire situation, the OverSleeve rapidly expands to crush and
seal off the duct to limit fire and smoke spread.
Fire Test Approvals
Chiltern labs fire test
Fire Rating – 15-120