The Science-Backed Framework Behind Healthier, More Productive Spaces
If your building could talk, would it be bragging about its filtration system, or apologizing for the eye-watering air and flickering lights? Gone are the days when “building health” meant just passing code. Today, buildings are expected to actively promote the health of the people inside them.
That’s where the 9 Foundations of a Healthy Building, developed by the Harvard T.H. Chan School of Public Health, come in. Whether you’re designing a high-performance workspace, a data center, or a school, this framework gives your team a science-backed roadmap to build better facilities for people, performance, and ROI.
We spend over 90% of our time indoors, yet many buildings still ignore basic health drivers like ventilation, lighting, and acoustics.
The framework breaks building health into 9 foundational categories. Each has a direct impact on occupant well-being, productivity, and performance. Let’s break them down and explore how Ketchum & Walton helps support each one.
Foundation #1: Ventilation
Ventilation is the first foundation of a healthy building, as it ensures the continuous flow of fresh air while removing indoor pollutants and pathogens that can affect occupant health. At Ketchum & Walton, we prioritize this critical element by designing and engineering HVAC systems that meet or exceed ASHRAE standards. Our custom air handling units (AHUs) are tailored to support precise airflow requirements across a range of complex environments, including data centers, schools, and office buildings, helping to create cleaner, healthier indoor spaces.
Foundation #2: Air Quality
Air quality is a critical component of a healthy building, as cleaner air contributes to fewer respiratory problems, improved cognitive performance, and reduced absenteeism among occupants. We address this at Ketchum & Walton by providing advanced filtration solutions ranging from MERV-13 to HEPA-level performance. These systems are specifically designed to reduce particulates, volatile organic compounds (VOCs), and other pollutants, making them ideal for sensitive environments such as hospitals and server rooms where air purity is essential.
Foundation #3: Thermal Health
Thermal health plays a vital role in maintaining occupant comfort, as extreme temperatures can negatively impact cognition, mood, and overall well-being. The Ketchum & Walton engineering team addresses this by designing zoned HVAC systems and integrating smart controls that maintain consistent thermal conditions throughout a building. This approach is especially beneficial in multi-use facilities or data centers, where different areas may have distinct temperature requirements, ensuring optimal comfort and performance across all environments.
In addition to HVAC zoning and smart controls, Ketchum & Walton now offers window shading solutions designed to reduce solar heat gain, which is often overlooked in thermal comfort. These systems help balance indoor temperature conditions by limiting sun-driven temperature fluctuations, particularly in perimeter zones and glass-heavy facades.
Foundation #4: Moisture
Moisture control is essential in maintaining a healthy building environment, as excess humidity can lead to mold growth, trigger asthma symptoms, and cause damage to sensitive equipment. At Ketchum & Walton, we address this risk by designing HVAC systems with precise humidity control and proper drainage solutions, particularly in rooftop units and mechanical systems. This is especially critical in data centers, where even slight moisture imbalances can compromise equipment performance and reliability.
Foundation #5: Dust & Pests
Controlling dust and pests is crucial to maintaining a healthy indoor environment, as unfiltered air can carry fine particles, allergens, and even pests that negatively impact occupant health and system performance. We combat these risks at Ketchum & Walton through advanced air filtration and pressurization strategies that help seal buildings against unwanted intrusion. These measures are particularly important in cleanroom environments and critical infrastructure settings, where maintaining air purity and system uptime is absolutely essential.
Foundation #6: Safety & Security
Safety and security are fundamental to a healthy building, as they help prevent injuries and create a sense of well-being for occupants. At Ketchum & Walton, we enhance building safety through thoughtful system design, incorporating secure access points for mechanical equipment and ensuring that rooftop units are properly enclosed and maintained. This not only protects the equipment but also ensures a safer working environment for operators and maintenance personnel.
Foundation #7: Water Quality
Water quality is a key aspect of a healthy building, as waterborne contaminants can impact digestion, skin health, and increase the risk of disease. While Ketchum & Walton does not manage plumbing systems directly, our commissioning and MEP coordination services play a vital role in ensuring that building-wide systems, including those affecting water quality, are properly specified, integrated, and reviewed throughout the design and handoff phases of a project. This collaborative approach helps ensure safe, reliable water systems in every facility we support.
Foundation #8: Noise
Noise control is an essential foundation of a healthy building, as unwanted sound can disrupt productivity, interfere with sleep, and negatively affect overall well-being. At Ketchum & Walton, we address this challenge through specialized acoustics and noise control solutions that minimize ambient noise from mechanical systems and rooftop equipment. These measures are particularly important in noise-sensitive environments such as schools, offices, and residential areas near data centers, where maintaining a quiet, comfortable atmosphere is critical.
Foundation #9: Lighting & Views
Lighting and access to outdoor views are vital components of a healthy building, as natural light and visual connection to the outdoors have been shown to enhance sleep quality, elevate mood, and boost cognitive performance. We collaborate closely with design teams to ensure that mechanical system layouts support daylighting objectives without obstruction. Additionally, we carefully consider glare and reflection when placing acoustic treatments to maintain both visual comfort and effective noise control.
We also offer automated shading systems that complement daylighting strategies by reducing glare without blocking access to views. This provides a more balanced visual environment while supporting energy efficiency and occupant comfort, particularly in spaces with significant exposure to direct sunlight.
Why does this matter?
The Healthy Building Movement is no longer niche. WELL Certification, LEED goals, ESG reporting all share the same foundation: creating spaces that support human health. Pair that with the rise of data centers and the increased importance of energy-efficient design, and the message is clear: building health is no longer optional, it’s expected.
The 9 Foundations aren’t a checklist. They’re a competitive advantage. From custom air systems to acoustical solutions, Ketchum & Walton helps building teams translate these principles into action. Let’s make your building smarter, safer, and healthier—together. Click here to contact us today.