Category Archives: Insulation

Rock Wool Insulation for Floor of High Performance Tiny House

ROCK WOOL INSULATION FOR FLOOR OF HIGH PERFORMANCE TINY HOUSE In August of 2016, we posted a video describing the design and construction of the foundation and floor framing of our High Performance Tiny House in Florida. Since then, we have made a lot of progress. We’ve also prioritized the design and construction of an off-grid, […]

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Insulating a Slab On Grade in Hotlanta

Insulating a Slab-On-Grade in Hotlanta Why in the world are we insulating a slab-on-grade in Hotlanta? Reason #1: Atlanta is not, I repeat, NOT a cooling dominated climate. Wait…What?!?!? Yes, it gets plenty hot here in the Summer, but it also gets downright cold. Which is why it’s one of the more difficult climates to design and […]

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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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Designing A Perfect Residential Wall – Atlanta, Georgia

Atlanta, Georgia has a reputation for getting pretty darn hot, but it can also get pretty dang cold (No snickering from you Northerners, please!). Believe it or not, Atlantans use more energy to heat their homes than they do to cool them. The design temperature set by ASHRAE for the Metro Atlanta area to use when designing heating systems, is […]

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14 Design Don’ts for High Performance Homes, Part One

There are a lot of ways to design a home. Designing one for high performance, though, or even better-than-average performance, has many recommended best practices that are based on a lot of research of homes that have failed because they’re unhealthy, inefficient, and/or falling apart. This is why we have building scientists (see SOAP BOX […]

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Design and Build Smart: Use Advanced Framing to Save Time, Money and Energy

Employing Advanced Framing Techniques during the design and construction phases saves on labor, material and the amount of heat loss in a new home. 25% of a the building shell area in a typical home is made of wood. The other 75% is primarily windows, doors, insulation, finishes and cladding. When you factor in the […]

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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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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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ENERGY STAR Certified Home in Grant Park – Atlanta, GA

Recently, this house in the historic district of Grant Park, Atlanta, was certified through the ENERGY STAR New Homes program at the EPA. The final inspection revealed an air tightness of 0.77 ach50, which is near the maximum acceptable air infiltration level of the aggressive Passive House program (0.6 ach50). The final HERS Index was around 64, which means (among other […]

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New Project (Renovation): Bar Antico – Italian Cafe with High Performance Twist

We have obained the permit from the City of Atlanta for the renovation and addition of this brick building in the “West Side” neighborhood of Home Park. Before demolition began, the building was a single-family home, and next to it was the parking for one of the busiest pizza joints in the country, Antico Pizza. […]

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