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Part F Compliance

  • 09-02-2024 8:22pm
    #1
    Large bottle small glass
    Registered Users, Registered Users 2 Posts: 1,924 ✭✭✭


    Hi

    Just finishing a deep fit renovation and looking like an A2 Rating.

    Ventilation is via decentralised HR units.

    In checking compliance with Part F 1.2.3.2b calculation is the air supply from just each HR unit totalled and compared with required air supply on basis of 0.3L/M2.

    For example if house size is 200m I need 60L/S for entire house.

    If HRUs can supply a combined 50L/s but there is an 5 wet room extract vans supplying a max 100L/s is that counted?

    Thank you



Comments

  • #2
    Mellor
    Registered Users, Registered Users 2 Posts: 39,901 ✭✭✭✭Mellor


    Extract fans don’t supply air. They count towards extract volume.

    You need 60L/s supply total AND 60L/s extract total. supply and extract volumes should be balanced with each other and each be proportional to the volumes of the rooms.



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