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Recessed Ceiling Vent Sleeve


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FirePlug Recessed Ceiling Vent Sleeves

Fire Sleeve, various sizes available. 

Recessed ceiling fans and ventilation ducts are widely used in both domestic and commercial buildings. Ceilings are subject to fire regulations and must be fire protected in accordance with Approved Document B of the Building Regulations.

Once a hole is made in the ceiling for a polymeric fan or vent, the integrity of the construction and its ability to perform in a fire is reduced significantly. This must be firestopped to reinstate the original fire rating of the ceiling.

The popularity of forced / controlled ventilation is on the rise as it can be more energy efficient than traditional ventilation methods. The use of centralised ventilation units and heat recovery units results in the building being subjected to penetration holes both horizontally and vertically through the structure, creating pathways for the passage of both fire and smoke.

Unlike downlights, which are generally all fire protected, fans and vents are often left unprotected. A 100mm diameter fan of vent has several times the open area of a downlight and does not even have a metal 'can' to slow the spread of fire. This coupled with the ability of the fire to move all around the building via the ventilation system, makes it ever more important to fire protect all ceiling mounted fans and vents.

Key Features &
Customer Benefits
  • Restores and maintains integrity of 30 & 60 minute fire rated ceilings.
  • Sleeve fits in seconds.
  • No mastic, screws or support required.
  • Sleeve is invisible once fan / vent is fitted.
  • Sleeve is light weight and can be fitted from above or below the ceiling.
  • Easy to retro fit into existing fans / vents.
  • Provides and effective acoustic barrier between fan / vent and ceiling.

The FIREFLY 109 sleeve has been developed to provide maximum protection for holes created by the introduction of the most popular sizes of polymeric recessed ceiling fans and vents with minimal installation time. In a fire situation, the sleeve expands internally to crush the spigot of the fan / vent and create an effective barrier against both heat and flames. Unlike other "intumescent" materials the FIREFLY 109 Sleeves do not need additional support and will only expand inwards.

30 Minute Plasterboard / Timber Ceiling.
Duration of effective protection - 36 mins
Test standard - BS476 Part 21
Test number - Chilt/IF06015
60 Minute Plasterboard / Timber Ceiling.
Duration of effective protection - 72 mins
Test standard - BS476 Part 21
Test number - Chilt/IF06021

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