Kair System 125 FireWrap for 125mm Round Ducting

Kair System 125 FireWrap for 125mm Round Ducting

When ventilation ducting is installed and enters or exits a fire compartment in a house apartment or multi-storey building it may be necessary to meet Document B of the Building Regulations to ensure that any fire is contained in one area and delayed from spreading for a time to allow the occupants of the building to escape. If ventilation ducting penetrates a Fire Rated separating element of construction such as a wall ceiling or floor slab then a Fire Stop needs to be fitted around the ducting at the position of the penetration to maintain the fire resistance of the separating element. The requirement for Fire Stops falls into two broad categories comprising Partition Walls and Masonry Walls and Floors.

Kair can offer a range of Fire Stops for these applications using Kair FireWraps (FW) Kair Galvanised Metal Sleeves (FWS) and Kair FireCuffs (FC). The most appropriate European Standard for penetrations in Partition Walls is BS EN 1366-3: 2009 and all of our partition products have been tested to this standard under the most stringent test conditions with both ends of the ducting left open giving the most realistic simulation of actual installed conditions.

For Masonry Walls and Masonry or Concrete Floors, we have test evidence to BS 476 Parts 20 & 22. Kair FireWraps are available in both rectangular and round sizes from 100mm round to 300mm x 29mm Rectangular. For the full range search Kair FireWrap.