Since it was established in the ‘90s, LEED has become one of the world’s leading green building certifications. With a focus on energy savings and sustainability, LEED was established to promote green ideas in building construction, design, and operation.
What Is LEED?
Leadership in Energy and Environmental Design (or LEED, for short) is a building certification program created by the Green Building Council with the goals of promoting greener, energy-efficient buildings.
Like the WELL Standard, LEED has four rating tiers: Certified, Silver, Gold, and Platinum. These tiers are based on the number of points earned towards certification, so if you’re looking to receive a top-level certification, it is crucial to maximize all available points.
Why Indoor Air Quality Is Crucial for LEED
Indoor Environmental Quality (EQ) is one of seven core categories that make up the LEED program. When designing green buildings, it is essential to also take the health of building occupants into account. LEED incorporated EQ to balance these complementary approaches to building design and reward positive design choices that emphasize the health and comfort of building occupants.
Depending on the type of project undergoing assessment, EQ can be worth a significant number of points. Many of the subcategories in Indoor Environmental Quality pertain to air quality. For example, for BD+C, O+M, and ID+C projects, setting air quality performance minimums through ventilation is a prerequisite for certification.
Using Kaiterra Enterprise Products To Earn a LEED Certification
Air quality monitoring can be a great asset when working towards a LEED v4.1 certification and will help you earn points in three main areas: enhanced indoor air quality strategies, indoor air quality assessment, and indoor environmental quality performance.
BD+C & ID+C Projects
Enhanced indoor air quality strategies (1 out of 2 points)
Enhanced indoor air quality is a key component of Indoor Environmental Quality that can earn you two points toward certification, and air quality monitoring can help with one of these points.
This category consists of two options, each worth one point: enhanced IAQ strategies and additional enhanced IAQ strategies. The former involves ventilation and exhaust optimizations, and the latter offers more flexible options, including air quality monitoring. To earn one point through option two, and depending on the project’s goals, teams can choose to implement:
|Mechanically ventilated spaces (select one)||
|Naturally ventilated spaces (select one)||
Mixed-mode systems (select one)
For each type of ventilation, air quality monitoring can help you achieve at least one of the options from the chart above. The Sensedge is a RESET-certified commercial air quality monitor, so it meets LEED requirements for carbon dioxide (CO2) monitoring.
Likewise, all of Kaiterra’s commercial air quality monitors are equipped with TVOC and particulate matter sensors and can also be equipped with ozone, formaldehyde, nitrogen dioxide, and others. Monitoring these additional parameters will meet the monitoring aspect of “additional source control and monitoring,” helping you earn that extra point.
Between these two options, projects of any ventilation type can earn the second point offered under enhanced IAQ strategies with Kaiterra’s commercial monitors.
Indoor air quality assessment (2 points)
For ID+C and BD+C projects (except for BD+C: Core & Shell), another opportunity to earn points is through an indoor air quality assessment. The goal of this credit is to establish better air quality once construction is completed and during building occupancy. There are two options to achieve points: flush-out and air testing.
Flush-out is worth one point and deals with ventilation. To earn this credit, the interior of the project must be flushed-out after construction is complete, but before building occupancy begins. Alternatively, if occupancy begins before the flush-out is complete, then a flush-out period must occur before each time the building is occupied.
In either flush-out path, temperature and relative humidity must be at least 60℉ (15℃) and no higher than 60%, respectively. Kaiterra’s commercial air quality monitors are equipped with dry-bulb temperature and relative humidity sensors, which can help you during flush-out.
The second option, air testing, is an IAQ spot check after construction but before building occupancy. One point is awarded for a check of particulate matter and inorganic gases (carbon monoxide and ozone), and another point is awarded for a test of volatile organic compounds.
With Kaiterra’s Sensedge and Sensedge Mini, you can continuously monitor particulate matter and TVOC, which can help meet air testing requirements. Additionally, if air quality tests aren’t sufficiently healthy for building occupation, then re-tests are necessary to earn points under indoor air quality assessment. Continuous air quality monitoring can save time and money normally used on re-testing, and you will immediately know when air quality conditions meet LEED’s specifications.
Indoor Environmental Quality Performance
Until now, we’ve mainly discussed BD+C and ID+C projects. What about Operations + Management (O+M) projects?
In LEED v4.1, O+M projects can earn points through the indoor environmental quality performance credit, which features a combination of air testing and occupant surveying. Previously worth 9 points, in the new v4.1 update, the indoor environmental quality performance credit is now worth up to 20 points. This marks an enormous change in the prioritization of air quality by LEED, and projects that follow this IAQ trend can earn major points.
O+M projects must use an annual survey and annual air test to calculate a Human Experience Score, which is based on:
- Occupant satisfaction score (50% weighting)
- CO2 score (25% weighting)
- TVOC score (25% weighting)
Once the Human Experience score is calculated, it is matched up to its corresponding point allotment. A score of at least 40 is required and is worth 8 points.
|Human Experience Score||LEED Points|
|40 (required)||8 (required)|
At least one air quality evaluation is required per year, and the costs of testing can add up. One way to save money in the long-term and complete the air quality evaluation component is to continuously monitor the required air pollutants. As we mentioned above, all of Kaiterra’s commercial air quality monitors continually keep tabs on particulate matter, TVOC, and CO2, helping you earn up to 20 points towards certification without the hassle of annual testing.
Securing a LEED certification takes time and effort, but it's well worth it in the end. To find out more about air quality monitoring options tailored to your project’s needs, reach out to our team below: