LEED Midrise Certification

LEED Midrise Certification
Last year, I petitioned the USGBC Technical Committee on Homes and received the green signal to pursue LEED certification for a 32 story apartment tower in San Francisco’s Transbay neighborhood. Midrise V 2010 allows certification for residential buildings of 4 to 12+ stories with exceptions made for taller buildings on a case-by-case basis. Residential projects
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Understanding LEED IAQ Testing Requirements

MODERN COMMERCIAL OFFICE
Understanding LEED IAQ Testing Requirements LEED 2009 and LEEDv4 both have credits that require building flush-outs or building air quality testing prior to occupancy. The credit requires that after construction ends, the GC must install new filtration media and flush-out the building by supplying a total air volume of 14,000 cubic feet of outdoor air per square
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Selecting Energy Efficient Windows for your New Home

Energy Efficient Windows - Insulated or Thermally Broken Frame
For folks building a new home, the job of selecting the Energy Efficient windows can be daunting. Based on the nature of the contract, the architect may or may not be involved in the window selection. Their contract may end with assisting the home owner with obtaining the permit. In such cases the homeowners may rely
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Watch a Funny Video About Healthy Building Science!

Funny-Video-Graphic-Artist-Drawing-Characters
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
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LEED Envelope Commissioning (Enclosure Commissioning)

What is Envelope Commissioning or Building Enclosure Commissioning (BECx)? Most of us have heard of Commissioning (Cx) as it deals with HVAC equipment and digital controls. But what is “Enclosure Commissioning” or “Envelope Commissioning,” and what about LEED Envelope Commissioning? Its scope is vast and skills and knowledge required are pretty intensive as well. LEED v4
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Understanding Materials Transparency in LEEDv4

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
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Safe Cookware

safe cookware
Does Stainless Steel Leach Chemicals? There is a lot of information in the blogosphere about health and safety in cookware, but when a client asked whether stainless steel leached dangerous chemicals, I was unable to find a quick answer to her question. I decided to look into the issue of safe cookware myself. In one 2013
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Magnetic Fields – EMF Consulting

Magnetic Fields - EMF Consulting
When performing EMF surveys many “EMF consultants” only evaluate low-frequency magnetic fields.  When folks call and say they “have an EMF meter” and are measuring “high emf,” they generally have a Gauss meter and are measuring magnetic field field strength or magnetic flux. Most Building Biologists focus on Alternating Current (AC) electromagnetic fields, and in addition
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EMI and LEDs – Not all LEDs are the same!

Dirty Electricity from LEDs
EMI and LEDs –  Not all LEDs are the same! Electromagnetic Interference (EMI, aka: “Dirty Electricity,” or “High Voltage Transients”) is a term coined for quick transient pulses, harmonics, spikes and dips in the electrical power in a home’s wiring that deviates from a purely 60Hz sine wave.  These often occur due to computers, other
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Energy Efficient Home

Energy Efficient LEED Home
A Comfortable and Energy Efficient Home through Science – Part 1 I am a big believer in using principles of science and an understanding of the sun’s movement through the sky to enhance your comfort while also making it a more energy efficient home. I am going to devote the next few blogs to giving
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