Environmental tobacco smoke (ETS) is a well-documented human health hazard. The only way to eliminate the threat of ETS is to completely prohibit smoking indoors, which is why LEED v4 gives no way around the requirement to ban indoor smoking.
No, there are almost no corporate sustainability reports that include the raw material extraction information required for Option 1. The exceptions might be for materials that are procured directly from commodity material companies, such as lumber or aggregate.
Although GBCI has not addressed this question directly, a LEED Interpretation from January 2017 suggests that dynamic glazing—unlike typical tinted glass—does provide glare control. Interpretation 100002149 includes electrochromic glazing in its definition of an automated dynamic façade system. Such systems "address sunlight penetration or perceived glare in the space.” This Interpretation states that buildings with such systems are not subject to Annual Sunlight Exposure (ASE) requirements.
Yes, you’ll need to complete this calculator if you’re attempting either credit. You’ll also need to submit a summary report from your daylight modeling program, or floor plans showing measurements taken if pursuing Option 3. Either report should confirm the compliant floor area in each space.
Glare control devices need to either be controlled manually or have a manual override to accommodate different individual preferences for lighting levels. In other words, they have to be real controls! For this reason, while exterior fixed overhangs and louvers can be helpful in achieving daylighting thresholds, you’ll still need to provide glare control devices that are accessible to occupants to comply with credit requirements.
It’s not a requirement to model any type of furniture, and in general it’s recommended to start modeling before the furniture layout is finalized in order to have the best chance for success. However, if there are concerns that there might not be enough light on desks with the high partitions, or even if the high partitions are part of a glare mitigation strategy, they can be included.
Although this was acceptable for LEED v2009 projects because thresholds were added to each type of compliance method, you will now need to just pick one option to follow. If your modeling program allows, try out both thresholds to see what will be more beneficial for your project.
LEED doesn’t require certain software to run the compliance calculation. However, the simulation should be able to run under “clear sky” conditions and calculate illuminance levels at 2'–6" above finished floor (AFF).
No. The compliant square footage would be the worst-case scenario between the two times. For example, a 900 ft2 space located on the western side of a building is 100% compliant at 9 a.m. but only 50% compliant at 3 p.m. The compliant square footage in this case is 450 ft2.
Use this spreadsheet (with sample data included) to track the ongoing and durable goods waste addressed by this credit.