No. JV3 modelling does not directly involve daylight modelling. However, compliance with Part F4 (Natural Light) relates to compliance with Section J (energy efficiency) on the following grounds:
- Selection of clear windows for good daylight access may contradict the required reduction in cooling demand in JV3 assessment.
- Adding a shading screen to a window or a horizontal shading device above a window to reduce the building’s cooling demand, has a negative impact on daylight access.
- Daylight sensors can help with achieving compliance with both Part F4 and Section J