Tag Archives: net zero

Building Science is Worthless…

Building Science is Worthless… Thousands of hours went in this construction detail. When we factor all the time spent by building science engineers, from all over the world, researching and testing each material and the various assembly options, and to figure out what works and what fails, the time is, really, impossible to quantify. Not to mention […]

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The HERS Index is THE Home Energy Efficiency Gauge

GET ON BOARD THE HERS TRAIN, YOU’LL BE GLAD YOU DID. The HERS Index is already the industry standard for measuring a home’s energy efficiency. In 2015, the International Energy Conservation Code (IECC) will allow the option for all new homes to use the HERS Index to comply. Considering that residential buildings account for approximately 36.5% (2012 figures) of […]

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Green Home From the Get Go – Guest Post

GUEST POST: GOING GREEN FROM THE GET-GO This article was published in the Atlanta-Journal Constitution (AJC) on Sunday, September 1st in the Homefinder section, and was written Lori Johnston of FastCopy Communications BY LORI JOHNSTON FOR THE AJC Lori Johnston is a writer and editor who writes about anything, from the housing market to personal finance to […]

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Attention to High Performance Details In New Homes Pays Off

On the One Hand… …the Proud Green Home at Serenbe has been a kind of Experimental House for High Performance Design and Construction. Some of the features, products and practices we’re trying for the first time with this home, others we’ve used or done before, but they are still relatively new to the industry. To […]

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PGH at Serenbe is 90% Tighter than Energy Code – Before Drywall!!

Before drywall was installed, I tested the infiltration (air leakage) at the Proud Green Home (PGH) at Serenbe, and the home achieved 0.72 ach50, or 0.055 ELR (more on these numbers in a minute). In other words, it’s really tight!!! The 2009 International Residential Energy Code (IECC), which is adopted in most states, requires an infiltration rate of […]

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Serenbe Modern Proud Green Home Update: Heating, Ventilation and Air Conditioning Systems

Things are really moving along on the Proud Green Home at Serenbe. This past Friday, the mechanical inspector paid a visit and we passed! Ahead this week; the builder has ordered the final plumbing inspection, the sprayfoam contractor is installing the open-cell foam in all the walls and roof, we will be performing the pre-drywall inspection for […]

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Construction Update: Contemporary Proud Green Home at Serenbe

WEEK 5: Jodi and I spent a day last week at Serenbe, which included a mandatory stop at the Blue Eyed Daisy. Aside from that, our main purpose was to check-in on the construction of the Contemporary Proud Green Home being built by Luis Imery and his crew at The Imery Group, and they’re moving right […]

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Designing High Performance Homes is Sketchy Business

Architects love to sketch! No matter how advanced, or how user friendly software programs get, we will probably always have a roll of tracing paper, a sketchbook, a napkin or even an iPhone app close by to lay down our ideas on. We can’t help it! A Higher Performance Sketching the designs for this home (right), the […]

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Improved Energy Codes, Diminishing Return, & a New Performance Baseline

It wasn’t long ago that the EPA’s ENERGY STAR New Homes Program created an uproar in the residential building community by releasing Version 3.0 of it’s volunteer 3rd party verification program. One of the biggest crack downs in the new version was it’s requirement for HVAC Contractors to test and verify their installations of the heating […]

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Designing for High Performance: Slab-On-Grade, Part III – Controlling Air Flow

In an earlier post, I talked about 3 of the most important strategies for making a home energy efficient. They were; 1. Air sealing, 2. Air sealing and 3. Air sealing. Air sealed, or tight, homes do a better job at containing the conditioned air coming from the HVAC system where it belongs…inside. Tight homes […]

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