Fire retardent material fire hood prevents the spread of fire in the event of a fire in the room below_x000D_. Suitable for 30 and 60 minute fire rated ceilings_x000D_. Unique self supporting and adjustable fixing method allows for installation in ceilings hick_x000D_. Failure to perform insurance - £10M cover (subject to correct installation)_x000D_. Tested to BS476 Part 21.