Daylight Factor, Difference between Honeybee Legacy and 1.3

grasshopper honeybee
1

Hi all,

I’m trying to calculate the Daylight factor for LEED certification which should be a minimum of 2% for 75% of the area.
I tried to calculate in 2 different ways in HB legacy and another way in Honeybee 1.3 and I got different results.
can someone tells me why I reach different numbers with different methods?
HB Legacy manual windows: 25% area > 2% DF
HB Legacy Glazing based on Ratio: 23% area > 2% DF
HB 1.3: 28% area > 2% DF

Thanks a lot,

Daylight Factor
Daylight Factor1626×628 45.8 KB

DF 2.gh (1.1 MB)

1 Like
3

Hi Sahand,
I have the same issue when I compare the ‘HB Legacy’ vs ‘LBT 1.5’ results of the average daylight factor. Have you managed to solve the issue?

4

Just sorted this out by assigning the same radiance parameters in both versions.