Building Biologist in the US

Helmut Ziehe is the Building Biologist who brought Building Biology to the United States. Helmut learned Bau-Biologie in Germany from the “mothership.” In Germany he was trained as an environmentally-conscious architect at the Technical University of Berlin, followed by a Master’s Degree from the London School of Architecture. Helmut mastered 5 languages during his life






Minimize EMF exposure

Minimize EMF Exposure The following article was first printed on January 30th, 2013 in the Los Altos Town Crier A growing number of Americans are concerned about electromagnetic fields (EMF) but don’t know what to do to mitigate the problem and minimize EMF exposure. Many European and Asian countries have enacted more stringent EMF regulations






Tooth Decay Trend in Flouridated and Non-Flouridated Countries

Fluoride, Health, and Drinking Water The addition of fluoride to the drinking water supply began in the 1950s as a method to fight against tooth decay.  Currently, 11 countries in the world have more than 50% of their population drinking fluoridated water. These include Singapore (100%), Hong Kong (100%), Brunei (95%); Australia (80%), Malaysia (75%),






Efficient vs Healthy Building

Recently appeared in the NorthBay Biz Journal, GreenScene by Alex Stadtner A battle has been raging in the design-build community for decades. Much is at stake, yet few are paying attention. Here’s the blow-by-blow from a battle that affects everyone. Ringside. Energy Efficient versus Healthy Building. A hush before the bell rings… When “green building” is mentioned






Building Inspector Environmental Checklist

Every building inspection should include a minimum scan for these Top-10 common environmental problems. These factors are simple to evaluate, often only involving using your nose and eyes, and can literally save lives. This building inspector environmental checklist is adapted from the Building Biologist’s Healthy Home Standard. There is no reason every home inspector cannot






EMF Health Effects

EMF Health Effects Study Released Everyone always asks me – whether they’re skeptics or not – where can I read peer-reviewed, published studies about EMF health effects? “Are there really studies linking magnetic fields and radio frequency radiation to cancer?”  Well… this is it!  Here is a big dose of reality for all the naysayers.






IEQ Investigations – The 4 P’s

Wednesday, 02 January 2013 by
IEQ investigations

IEQ Investigations – The 4 P’s Indoor Environmental Quality (IEQ) is critical for occupant comfort, productivity, and well-being. An IEQ investigation should be performed proactively in order to avoid occupant complaints and decreased productivity, and to minimize long-term damage to building materials. Too often, IEQ investigations are made reactively – in response to occupant complaints or known






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Exposure Limits in US

Exposure Limits in US – Alphabet Soup Exposure Limits in US should be super simple. “Do not exceed #.” But it’s a government regulatory issue… so how simple could it be? Here is a summary of the primary exposure limits used by our government and industrial hygienists in the United States. Permissible Exposure Limits (PELs) – OSHA






San Francisco Bay Area Green Building

While we’d prefer everyone adopt green building principles because of carrots… sometimes it takes a stick! This compilation of San Francisco Bay Area Green Building Policies comes from Build It Green, creators of GreenPoint Rated, a residential green building rating system. Local Government Green Building Ordinances in California In recent years, numerous local governments in California






LEED-Homes Overview

Tuesday, 18 December 2012 by
LEED-Homes Overview

The United States Green Building Council (USGBC) has created a number of “green building ratings systems.” This LEED-Homes Overview addresses the fundamental structure of LEED-H, and outlines the different roles involved in the rating process. While the residential rating system is quite similar to other LEED systems, the players and process for LEED for Homes certification deserves






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