loudspeaker fire hoods

Maybe not exactly a wiring regs question, but does anyone know of a fire hood for an 8 inch ceiling loudspeaker that offers 120 minute fire resistance?  I can find 90 minute hoods, but this design (not ours I hasten to add) has put loudspeakers into a 120 minute fire ceiling and this is proving a bit challenging.

We can possibly change to wall loudspeakers in these areas but if we can find a 120 minute hood that would be the easiest solution.



  • You must be in a tall building or one with substantial number of floors below ground? Anyway, 120mins fire resistance is hard to achieve but like all fire rated ceilings, it comes with very tight specification. Banging holes in them, fire hoods or not, could torpedo that specification. 
    Any one objecting, perhaps via some future fire safety inspection, could have you on the rack! If I were you, I would definitely not puncture a 120min fire rated ceiling without written approval from a fire engineer or the building’s fire risk assessor.

  • how deep are the speakers from front to back - could the speaker be entirely below the firebreak level and be mounted in a suspended tile or something hanging trendily  a few inches below?


Reply Children
  • The specified units are quite deep at 240mm, which would put us in pendant loudspeaker territory as an alternative, but the ceiling is a bit low for that.  We're exploring wall loudspeakers as an alternative, or lower profile units in an enclosure, or surface mounted units.  It is all a bit tricky though.