Indoor Environmental Quality

AIA COTE Sustainability Slam 2017

AIA COTE Sustainability Slam 2017

Mugdha Mokashi, one of ArchEcology’s in-house energy efficiency experts, recently presented at the AIA Sustainability Slam 2017 in Seattle. It was a great platform to interact with individuals working in the field of sustainable design. The presentations were interesting and provided information on various sustainability initiatives in Seattle such as Healthy Materials Collaborative or the work in the field of Measurement and Verification. Mugdha presented a comparison of three daylight simulation tools. The 7-minute brief presentation was intended to be a concise overview of the pros and cons of the three simulation tools. It provided a glimpse of the interface, the simulation process and the type of analyses and outputs provided by each tool. This comparison is helpful for design teams to decide which tool suits their needs for different design stages. Interested in having ArchEcology provide your office with a learning session on software tools available for sustainable design? Get in […]

Daylight Credit – LEED v4

Daylight Credit – LEED v4

The “Daylight” credit under the Indoor Environmental Quality (IEQ) category has been updated in LEED v4 to incorporate new metrics. LEED 2009 provided a prescriptive compliance path to achieve daylight credit. This compliance option permitted the calculation of daylight in a space using the window design. These calculations lacked in accuracy as they did not account for project-specific performance factors such as building orientation, exterior conditions, interaction with interior finishes or time of day and year. LEED v4 no longer permits this prescriptive compliance method. Instead, it focuses on using simulations for daylight analyses and actual measurements to estimate daylight quality and levels. Compliance options 2 and 3 in LEED v4 are similar to the compliance options in LEED 2009 with minor changes. Changes to Option 2: Simulations for LEED v4 projects need to use local weather data and the accepted illuminance range is narrowed to 300 – 3000 lux. […]