BS PAS 2038:2021 PDF
This PAS specifies requirements for retrofitting non-domestic buildings for improved energy efficiency. It covers all buildings except those used as private dwellings (i.e. houses, bungalows, flats or apartments). However, non-domestic buildings do include multi-residential buildings in which occupants share some communal facilities, e.g. hotels, guest houses, hostels and students’ and nurses’ accommodation.