As a certified Building Biology Advocate, I am often asked “What is Building Biology?” The answer is simple, but often ignored when designing our homes, offices, and schools.
What is Building Biology?
Building Biology is the study of the impact of the indoor environment on our health. Building Biology comes from the German term Bau-Biologie (bau meaning building and the living environment, bios meaning all forms of life, and logos implying a sense of order).
There is no question that buildings have an impact on those who occupy them. The average person spends 90 percent of their time indoors. This is in stark contrast to most of human history, when mankind spent significant time outdoors. The World Health Organization meanwhile continues to sound the alarm when it comes to the rise of chronic diseases (see this WHO factsheet).
Building Biology in the United States was founded by Helmut Ziehe, a seasoned German architect who was working in North Africa in 1980. Ziehe helped design government homes made of concrete. Most of the city’s 90,000 inhabitants abandoned the homes, choosing to live in tents instead. Ziehe realized that health must be the primary concern in building design, eventually relocating to Florida where he founded the International Institute for Bau-Biologie & Ecology (IBE) in 1987.
Building Biology acknowledges that a sick building can diminish our life while a health-supporting building can enhance it, emphasizing the use of natural building materials as opposed to those that are synthetic and unnatural.
My Story
My interest in Building Biology was spurred by our family’s toxic mold exposure in 2007 (read our story here). The widespread use of drywall and plywood for home construction often creates the perfect storm when it comes to mold growth, leading to a pandemic of indoor mold “palaces.”
I pursued certification to expand my knowledge and help raise awareness about the connection between the indoor environment and health.
Building Biology places a a strong emphasis on electromagnetic fields (EMFs). Thanks to my studies, we have made significant changes in our home.
- From Wireless to Wired – Our Family’s Journey
- How and Why We Replaced Our Smoke Alarms
- Sleep, Melatonin and Electronic Devices
25 Building Biology Principles
The following principles offer a comprehensive checklist when it comes to safe, healthy building construction. While all 25 principles are difficult to achieve, this list shows how far we have strayed from natural building practices.
Site and Community Design
1. Verify that the site is free of naturally occurring health hazards.
2. Place dwellings so occupants are undisturbed by sources of man-made air, soil, water, noise, and electro-pollution.
3. Place dwellings in well-planned communities that provide ample access to fresh air, sunshine, and nature.
4. Plan homes and developments considering the needs of community, families, and individuals of all ages.
Occupant Health and Well-Being
5. Use natural and unadulterated building materials.
6. Allow natural self-regulation of indoor air humidity using hygroscopic (humidity buffering) building materials.
7. Assure low total moisture content and rapid desiccation of wet construction processes in new buildings.
8. Design for a climatically appropriate balance between thermal insulation and thermal storage capacity.
9. Plan for climatically appropriate surface and air temperature.
10. Provide for ample ventilation.
11. Use appropriate thermal radiation strategies for heating buildings, including passive solar wherever viable.
12. Provide an abundance of well-balanced natural light and illumination while using color in accordance with nature.
13. Provide adequate acoustical protection from harmful noise and vibration.
14. Utilize non-toxic building materials that have neutral or pleasant natural scents.
15. Use appropriate water and moisture exclusion techniques to prevent interior growth of fungi, bacteria, dust, and allergens.
16. Assure best possible potable water quality by applying purification technologies if required.
17. Utilize physiological and ergonomic knowledge in interior and furniture design.
18. Consider proportion, harmonic measure, order, and shape in design.
Natural and Man-Made Electro-Magnetic Radiation Safety
19. Minimize indoor interference with vital cosmic and terrestrial radiation.
20. Minimize man-made power system and radio frequency radiation exposure generated from within the building and from outside sources.
21. Avoid use of building materials that have elevated radioactivity levels.
Environmental Protection, Social Responsibility, and Energy Efficiency
22. Construction materials and production and building processes shall provide for health and social well-being in every phase of the building’s life-cycle.
23. Avoid the use of building materials that deplete irreplaceable natural resources or are being harvested in an unsustainable manner.
24. Minimize energy consumption throughout the life of the building utilizing climate-based and energy-efficient design, energy- and water-saving technologies, and renewable energy.
25. Consider the embodied energy and environmental life-cycle costs when choosing all materials used in construction.
(Download this list of IBE’s 25 Principles of Building Biology.)
While the medical industry continues to look for cures for chronic disease, Building Biology seeks to prevent disease by helping consumers make informed choices when it comes to their indoor environments. According to Building Biology, nature is the ultimate guide.
Would you like to learn more about Building Biology? You’ll find fact sheets for each of the following on the homepage of the International Institute for Building-Biology & Ecology.
- Ample Natural Ventilation
- Healthy Sleeping Sanctuary
- Free-Flow Cosmic/Terrestrial Radiation
- EMR Safety from Outside Sources
- Healthy Cleaning Products
- Drinking Water Purity
- Health-Supporting Color Scheme
- Non-Toxic Natural Finishes Throughout
- Eliminate Toxic Combustion By-Products
- EMR Safety In-house
- Healthy Radiant Heating
- Acoustic Protection in Walls & Windows
- Flow-Through Walls & Moisture Control
Image courtesy of International Institute of Building-Biology & Ecology
The International Institute for Building-Biology & Ecology offers online courses, certification programs, and useful publications. With the work of IBE and and an educated public, we may see major changes in the way we construct and maintain our homes, offices, and schools.
I am considering the build of a tiny home using only safe building materials.
What resources can you recommend?
Thank you ?
One of the best books on the subject is Prescriptions for a Healthy House
https://www.amazon.com/Prescriptions-Healthy-House-Architects-Homeowners/dp/189740820X/ref=sr_1_1?ie=UTF8&qid=1473796243&sr=8-1&keywords=prescriptions+for+a+healthy+house
The Building Biology site also offers an online course on building materials. That could be worth taking.
Tiny house sounds awesome!
Why couldn’t someone build homes with removable panels at every place where pipes that carry liquids, will be hidden? Then a responsible homeowner can check the status of areas that have the potential to kill us little by little, in a stealthy fashion, drip by drip.
So true, Dave.
I have often thought similarly, Dave. I built my mold-safe house with solid concrete walls (which I love) but if I had to have walls with hidden chambers, I would hinge the drywall (or whatever) panels on top so I could simply lift them to check behind.
Thanks for this, Kim!
In the house I am building, the interior walls are pine tongue and groove (no drywall, plywood or interior wall insulation in house) and I will place a one inch soffit vent near bottom of most wall segments for ventilation and allow easy inspection with usb borescope — for leaks or evidence of critters. In wet room areas, the pine will be covered with Waterlox for protection from bulk water but I will rely on natural moisture buffering of wood coupled with exhaust-only fan in the shower room.
Thank you for sharing this!
What do you use to cool your home? Maybe you don’t. My HVAC system grew mold in it and the vents. I see where radiant heating is healthier and of course if we were starting over we would do that.
We have central air conditioning. Of course, I despise it but swamp coolers concern me too. If I had a small place I would probably opt for swamp cooler as long as I was vigilant.
We use mini-splits which have been great – no ductwork.
This concept is fascinating, and so very necessary. I hope someday these considerations will become standard practice. I wonder if you have any recommendations for safe interior paints? We have chemical sensitivities (headaches). Thank you so much for this site and sharing your knowledge and wisdom!
Hi Amanda.
I have only used milk paint in small spaces in my home. It’s completely natural and simple to mix. I’m not sure how it would do for large areas. Here’s a good article with suggestions:
http://eartheasy.com/live_nontoxic_paints.htm
Thank you, Andrea!
Hello Andrea,
I’d love to learn more about becoming a Building Biology Advocate. Where did you get certified? What kinds of jobs do you get to do?
You can find out more at this site, Catherine: https://hbelc.org/certifications