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published: 19/1/2021

19th January 2021: Release of cSBEM_v6.0.b to accompany England's 2021 Part L consultation

Release of cSBEM_v6.0.b

cSBEM_v6.0.b includes the following key modifications:

  • Implementation of 2021 NCM (including updated fuel factors for primary energy and CO2 emissions), Notional building options, and compliance targets proposed for revised Building Regulations in England
  • New parameter for differentiating between roof windows and rooflights in roof elements
  • New parameter for denoting input U-values of rooflights that have been assessed for horizontal orientation
  • New parameter for defining different flow rates for showers, regardless of presence of WWHRS
  • Updated NCM Construction Database
  • Updated education activities in NCM Activity Database using revised data from Department for Education
  • Addition of new activities to NCM Activity Database to allow modelling of changing rooms with showers with "medium" and "low" HW usage, as well as, the existing "high" HW usage activities
  • Lighting levels for activities in NCM Activity Database updated to minimum and maximum values
  • Calculation in SBEM terminated if conditioned zones have been assigned activities which are unconditioned in NCM Activity Database (i.e., have no setpoint temperatures)