Wet room
Approved document M, Volume 1: Dwellings (2015 edition incorporating 2016 amendments), defines a ‘wet room’ as a: ‘WC or bathroom compartment with tanking and drainage laid to fall to a connected gulley capable of draining the floor area when used as a shower.’
Approved document F: Volume 1: Dwellings, 2021 edition, defines a wet room as: ‘A room used for domestic activities (such as cooking, clothes washing and bathing) that produce significant amounts of airborne moisture, e.g. a kitchen, utility room or bathroom. For the purposes of Part F of the Building Regulations, sanitary accommodation is also regarded as a wet room.’
The Home Quality Mark (HQM) defines a wet room as: '...a room used for domestic activities (such as cooking, clothes washing and bathing) which give rise to significant production of airborne moisture, e.g. a kitchen, utility room or bathroom.' NB For the purposes of HQM, drying space is also regarded as a wet room. Ref Home Quality Mark One, Technical Manual SD239, England, Scotland & Wales, published by BRE in 2018.
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