Category Archives: Building Science

Building a Concrete Slab to Last Forever

BUILDING A CONCRETE SLAB TO LAST FOREVER, AT THE OFF-GRID HOMESTEAD Can something we build today, using the materials and techniques available, last forever? Like the ancient Pyramids and Temples in the world? With a focus on durable materials, solid soil, and proven best practices of construction, I believe it is absolutely possible to build […]

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Controlling Heat Flow and Cracking in Concrete Slab

CONTROLLING HEAT FLOW AND CRACKING IN SLABS ONE BUILDING, TWO SLABS Two of the five concrete slabs at the off-grid homestead are now complete. The barn has two completely separate slabs for one building, with a two inch gap between them, filled with two (2”) inches of rock wool insulation to control heat flow and […]

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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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Raising the BARrier in North Carolina Mountain Home, Air Tight Ceiling

Raising the BARrier in North Carolina Mountain Home The AIR Barrier at the ceiling plane, that is…. At LG Squared, we have experimented with many ways to design and build a roof assembly for a home. Without question, we have found the ventilated attic to be THE most effective. Image 1 – View from Home: […]

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Building with Rocks, Rocks! Check Out It’s Drying Potential.

Building with Rocks, Rocks! Check Out Its Drying Potential. Check this out! This 24″ x 48″ x 2″ thick piece of rigid stone wool insulation was left out overnight (on purpose) on the High Performance Tiny House project site, to see how it handles a deluge of rain, which we knew was coming. One of the […]

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Well-Built Dumb Home

Well-Built Dumb Home One of the smartest things ever said about building a new home, was about something dumb: “A Well-Built Dumb Home beats the Smart Thermostat Every Time” – Mike Rogers, OmStout Consulting Mike said this in response something I shared on LinkedIn, which was a blog post written by the British architect, Elrond Burrell, known for his PassivHaus musings, where he […]

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A Solution for Fresh and Make-Up Air Happiness

A Solution for Fresh and Make-Up Air Happiness Most of us are happy inside our homes, when the air we breath is fresh, and without the nastiness that can make us sick, or that is just plain stinky. As soon as it’s not fresh, we try to get rid of it. Some of us open a window or two. Others crank up an exhaust […]

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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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A Perfect Residential Building Enclosure

A Perfect Residential Building Enclosure Buildings fail. It’s a harsh reality, but they do, and for many different reasons. Two pretty common ways are by falling down, and by making the people in them sick. There is a long list of other reasons, but this post is focused on these two. I am going to share how we are preventing these failures in all […]

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Sparky Doubled the Air Leakage in this Home!

Sparky Doubled the Air Leakage in this Home This is the home. This is the hole that Sparky (electrician) “innocently” made to feed a wire to the light on the front porch of the High Performance Bungalow. I discovered it a day or two after our home performance diagnostics team, Carl Seville and Abe Kruger, of SK […]

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