From the early conceptual design phase of a project, Brummitt’s daylighting specialist can help the team orient the building to maximize the daylighting potential and provide design guidance for architectural features and glazing products that will increase the effective daylighting and minimize glare and heat gain.
When started early in design, daylight mapping can help avoid hot spots and identify methods to implement a combination of side and top lighting strategies to provide balanced daylight.
Solar Shading Studies
- Building Orientation
The daylighting specialist addresses the importance of orienting the building to the site. This encourages good daylighting and avoids having to fix problems later in design.
- Shading Strategies
Shading studies are done to correctly size architectural shading elements such as overhangs and vertical fins. This helps to eliminate or decrease direct sun penetration into spaces and reduce glare and heat gain.
Other shading strategies can also be analyzed-such as the example to the right– using a photovoltaic system to shade the building.
Shading studies can also be performed for CHPS Daylight Credit EQ1.1.
Daylight Illuminance Modeling
Daylight Illuminance Modeling is performed using computer software to predict the performance of daylight in the building.
The modeling results can be provided as a Daylight Map which helps the team see where there is effective daylighting in the building and where there could be potential glare and heat gain problems with the design.
The Daylight Model can also be used for compliance with LEED or CHPS Daylighting Credits and to predict Daylight Harvesting potential.
A space is not daylit unless the electric lighting is turned OFF!
Daylight Harvesting involves the use of automatic daylighting controls in a space to ensure that the electric lighting is reduced or off when adequate daylight is available.
Brummit’s Daylight Illuminance Model predicts the daylight levels throughout the year which will inform the lighting control zones and automatic daylighting control design.
A design that includes Daylight Harvesting can ultimately help the project achieve:
- Increased energy efficiency performance better than code
- Higher utility incentives
- Increased energy performance for LEED EA credits
- Owner’s energy savings for the life of the building