In 3-Tire approach to daylighting system which of the following should contribute the more

To answer your question about the 3-Tier approach to daylighting systems, it's important first to define the tiers typically involved in this approach and how they contribute to effective daylighting.

1. Tier 1: Site Orientation and Design

   • Consideration of the building’s location and positioning in relation to sunlight availability throughout the year.
   • Optimizing window placement and sizes to maximize daylight access.

2. Tier 2: Building Envelope

   • Utilization of materials, glazing, and reflective surfaces to enhance daylight penetration and reduce glare while maintaining thermal comfort.
   • Implementation of shading devices to control the amount of light entering the space.

3. Tier 3: Interior Design and Layout

   • Arranging the interior spaces and finishes to distribute natural light efficiently around the room.
   • Use of light-colored walls and strategic placement of artificial lighting to complement the daylight.

Conclusion

In the 3-Tier approach, while all three tiers are important, Tier 1 (Site Orientation and Design) typically contributes the most to daylighting effectiveness. This tier essentially lays the groundwork for the other two by determining how much natural light the building can receive based on its orientation and external design features.