Machine-translated from Danish
How to split a building with mixed usage
Purpose
Section titled “Purpose”Model a building that has more than one usage, e.g. a property with both housing and shops.
Prerequisites
Section titled “Prerequisites”You’re on Building and operation, in the Usages table.
- Click Add usage for each actual use in the building: a new row is created in the table for each one.
- Fill in heated floor area and BBR category for each individual usage.
Result
Section titled “Result”The limit value is calculated as an area-weighted limit across the usages (BR § 298(4)). The weight is each usage’s reference area (BR § 297(5)), not its heated floor area. An unheated usage, for example parking, therefore counts towards the weight.
The heated floor area is still used: it decides which area bracket the building falls into, and it is the basis for operational energy (B6) and standard values.
Trap: if heated floor area or gross floor area is missing on even one usage, the area-weighted limit value can’t be calculated at all, not just for that usage, but for the whole building.