Standards

Saudi Arabia green building daylighting

Mostadam is Saudi Arabia's national green building rating system. DL-Light adapts the daylighting assessment methodology to the Saudi climate and performs the six-date analysis required for the Mostadam daylighting credit.

The tool produces both detailed date-by-date reports and the synthetic compliance summary, directly applicable to Mostadam project submissions.

  • Adapted to Saudi Arabian climate
  • Six-date analysis as required by Mostadam
  • Detailed date report + synthetic summary
  • Pass/fail per Mostadam criterion
  • Ready-to-submit compliance report

Frequently asked questions

What is MOSTADAM assessment?

MOSTADAM is the Saudi Arabia sustainable building rating system. It includes daylighting performance requirements and credits to encourage energy-efficient, visually comfortable design with adequate natural light.

How does DL-Light compute it?

DL-Light computes illuminance and daylight metrics required for MOSTADAM compliance using climate-based simulation with local weather data. It generates reports showing achievement of credit requirements for daylighting.

What thresholds or standards apply?

MOSTADAM daylighting credits require demonstration of adequate illuminance in occupied spaces using climate-based analysis. Targets typically include 300+ lux for at least 75% of regularly occupied floor area during daylight hours.

Going further

Read the full DL-Light user-guide reference for Mostadam Rating System: Windows guide · macOS guide.

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