Category of systems
(Residential)

  • Category 1 (Typically a domestic dwelling (house) for a single family)
  • Category 2 (Typically a block of flats over 18m)
  • Category 3 (Typically a residential care home)

Sprinkler systems

CATEGORY 1

Individual dwellings (houses), HMO’s, B&B’s, Boarding Houses, Small blocks of flats ≤ 18m, with max floor area of 2400m²

  • Calculate for 1 or 2 sprinkler heads operating
  • Average 84-100 litres/minute
  • Storage for 10 minutes supply
  • Tank size 1m³ to 1.5m³

 

CATEGORY 2

Blocks of flats flats > 18m, small residential care homes, sheltered/extra care

  • Calculate for 1 or 2 sprinkler heads operating
  • Average 84 – 100 litres/minute
  • Storage for 30 minutes supply
  • Tank size 3m³ to 4.5m³

 

CATEGORY 3

Large residential care homes, sheltered/extra care & blocks of flats > 18m where communal areas also protected

  • Calculate for up to 4 sprinkler heads operating
  • Average 168 – 200 litres/minute
  • Storage for 30 minutes supply
  • Tank size 6m³ to 9m³