Plumbing - Approximately 100mm around all plumbing penetrations through the floor.
Ceiling clearances:
Unmarked recessed luminaires -100mm; Insulation is to be seated in position
CA rated luminaire - Nil ; No minimum clearance is required however do not install insulation over the top of the luminaire
IC rated luminaire - Nil ; No minimum clearance is required and insulation can be installed over the top of the downlight.
Independent controlgear - 50mm, or on top of the insulation ; Place controlgear on top of the insulation where practicable. It must not sink; otherwise leave 50mm - Do not cover.
Unducted fans - 200mm ; From outer edge of extractor fan to ALL other insulation including existing insulation
Metal chimneys & flues - 75mm; From outer edge of metal chimney flue to ALL other insulation including existing insulation