Irradiance near Edges

ladybug-tools
1

Hi,
i’m wondering about some results of an annual irradiation calculation (LBT 1.7.1). Near the edges the irradiation is significantly higher then on the average of the surface:
grafik

The difference from points near the edges is up to 400 Wh/m² a year:

grafik
grafik667×508 60.5 KB

Can this be reduced by some radiance parameters?
Irradiation Egdes.gh (62.6 KB)

Best regards,
Heiko

2

@HeikoWoehrle Hi, is you geo a closed brep? Try to join the surfaces and decrease the grid size a little more