Can I install downlights, ducted air conditioning, ceiling exhaust fans or manholes in my unit ceiling?
Well yes… but you need to be very careful if your ceiling designed to have a “resistance to the incipient spread of fire to the roof space for a period of not less than 60 minutes”.
Fire rated ceilings are an fire safety measure, designed to slow the spread of fire from one part of the building to another.
Passive Fire measures are designed to stop (or slow) the spread of fire from one part of the building to another. Most buildings have Passive Fire protection measures – even if they are not specifically listed on the AFSS.