Spatial Daylight Method (sDA300/50) for LEED v4/v4.1 and WELL projects
Additional LEED and WELL points are easily achieved with our daylight simulations according to the Annual Spatial Daylight Method in most building projects.
This potential is rarely exploited by LEED and WELL APs.
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LEED v4.1 – Daylight – Credit 7 (IEQ Cr 7) Option 1: Simulation: Spatial daylight autonomy and annual sunlight exposure (2-3 points, 1-2 points healthcare)
- Spatial Daylight Autonomy (sDA300,50%) describes the quality of daylight utilization in the building and at the workplace.
The value determined indicates the percentage of the area that has more than 300 lux illuminance for at least 50% of the annual usage time (sDA300,50%). - This analysis can demonstrate the extent to which regularly occupied spaces can be used without additional artificial lighting wherever possible.
- Key factors for improving daylight utilization are shallow room depths, large glass surfaces and glass with high light transmission and low heat input in summer.
- The Annual Sunlight Exposure (ASE1000,250) describes how high the proportion of the surface area is that is exposed to too much direct sunlight.
Too much direct sunlight leads to visual disturbances due to glare and increases the cooling load.
For all regularly used areas with an ASE1000,250 higher than 10 %, it is necessary to check what measures have been taken to prevent glare. - We create LEED-compliant certificates and guarantee that our results are recognized by LEED and WELL.
- LEED points are awarded depending on whether 55% or 75% of the area fulfills the requirement.
The points are awarded according to the following table.
| LEED sDA300;50% (for regularly occupied floor area) | Points |
| Achieved for >55% of the regularly used floor area | 2 |
| Achieved for >75% of the regularly used floor area | 3 |
WELL – Light – L05.2 – Enhanced Daylight Access: Implement Enhanced Daylight Simulation (Max: 2 points)
- We create WELL-compliant certificates.
We guarantee the recognition of our results by the WELL certification body. - WELL points are awarded depending on whether 55% or 75% of the area fulfills the requirement.
The points are awarded according to the following table.
| WELL sDA300;50% (for regularly occupied floor area) | Points |
| Achieved for >55% of the regularly used floor area | 1 |
| Achieved for >75% of the regularly used floor area | 2 |
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