Point: 4.2.2 Why does the footnote in the tables on the requirements for non-residential buildings in point 4.2.2 refer to the residential building usage profile and should the introductory sentence of the second table in this section not read “If the energy performance factor is used to demonstrate compliance with the requirements for non-residential buildings, the following maximum values apply”?

Yes, of course the second introductory sentence should announce the requirements for non-residential buildings by analogy with the first introductory sentence. The reference to the residential building usage profile when verifying the requirements is correct. This is due to the fact that some usage profiles have such a high air change rate in their usage profile that the ventilation losses alone would rule out a positive undercutting of the requirement values. At the same time, this type of requirement setting offers the advantage that requirements are always met in the event of subsequent changes of use. This corresponds to the earlier concept of the HWB* (residential building equivalent, area-related heating requirement).