We decided to lighten the mood at Healthy Building Science by creating a funny building science video about what we do. What started off as a standard informational video soon turned into something very different. We hope you enjoy the results of this building science video. In October 2013, we assembled a team consisting of






The Materials and Human Health Summit provided a good explanation of the approach that LEED v4 is taking with regard to materials transparency in LEEDv4. (See my previous post, Tension at the Materials and Human Health Summit? for more on the event). In place of the controversial LEED Pilot Credit 54 that ignited some of the animosity between






What is in that New Car Smell?

Friday, 15 November 2013 by

Testing a new car for VOC’s and Formaldehyde Healthy Building Science recently leased a brand new 2013 Volkswagen Jetta TDI Clean Diesel for use by the inspection department.  While the car is very nice, low emissions and great mileage, it definitely has that New Car Smell.  Being the science geeks we are at HBS, I






building a healthy home

When most people build or remodel their homes, they pay close attention to indoor air quality, comfort and aesthetics. The task of building to survive natural disasters like earthquakes (as the San Francisco Bay region is prone to) is left to building codes and local code enforcement. And the task of ensuring the home maintains livable






Smog and Particulates

Tuesday, 01 October 2013 by

Smog and Particulates How Fine Particulates Affect Exterior and Interior Air Quality No matter how well our “Green and Healthy” homes are designed and built, our interior air quality can only be as good as our exterior air quality (our “source air”), unless we add active air filtration into our building design.  But how do






How to Clean Up Mold?

Tuesday, 10 September 2013 by
Mold Clean Up - When to Call in Professional Remediators

Most of this blog on how to clean up mold is from the “Help Yourself to a Healthy Home” guide from HUD. We generally suggest hiring an established remediation company with professionals certified by the IICRC… but many cannot afford to pay for that service or don’t feel it’s necessary. Personal Protective Equipment (PPE) for






Blown-in-Cellulose Insulation

Wednesday, 21 August 2013 by
blown-in-cellulose insulation

Blown-in-Cellulose Insulation Test Results On a recent project, we recommended a homeowner try Blown-in-Cellulose insulation as a healthy alternative to other insulation choices. Blown-in-cellulose is known in the healthy materials world as a pretty safe insulation choice. But just to be sure the product was safe, we sent a wet sample to a lab for






Mold in the Home – What to do?

Tuesday, 13 August 2013 by
mold in the home

Mold in the Home – What to do? What to do about mold in the home, how to avoid it, how to clean it up, is mold testing a good idea? etc. This blog focuses on residential mold tips. Many of these best practices are drawn from the following government-sponsored resources on healthy homes: Help






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Sick Building

Thursday, 04 July 2013 by
What is a Sick Building?

What is a Sick Building? There is often confusion over the definition of a sick building. We hear questions like, “Is my building sick?,” and, “How do I know if my building is sick?” Therein lies much of the confusion. Buildings don’t get sick, people do! Sick Building Syndrome (SBS) Determining if occupants suffer from






CO2 in the air

CO2 in the Air – Why is My Air Stale and Stuffy? Carbon Dioxide and Its Relation to Your Interior Air Quality. CO2 in the Air. Why is my air “Stale?” Many of my clients often complain of either specific symptoms, general malaise, or “just not feeling right” when in a building they spend a






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