Chris Laumer-Giddens's Blog Posts Tagged 'energy' (10)

Building with Rocks, Rocks. Check out the Drying Potential

Building with Rocks, Rocks! Check out the 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 many …

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Added by Chris Laumer-Giddens on July 26, 2016 at 6:30am — No Comments

Sparky Doubled the Air Leakage in this Home!

Sparky Doubled the Air Leakage in this Home

This is the home.

high-performance-bunglaow

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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Added by Chris Laumer-Giddens on November 24, 2015 at 9:08am — 4 Comments

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,…

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Added by Chris Laumer-Giddens on August 25, 2015 at 6:30am — 1 Comment

Mini-Split Heat Pumps are Quirky, Especially their Capacity

Mini-Split Heat Pumps are Quirky and Still Effective

The name "mini-splits" generally refers to heat pump systems with one outdoor unit and one or several smaller capacity air handlers. The efficiency of their operation comes via the inverter compressor and variable refrigerant…

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Added by Chris Laumer-Giddens on September 17, 2014 at 4:32pm — 5 Comments

0.72 ach50 Before Drywall - This Home is already 90% Tighter than Energy Code

Before drywall was installed, I tested the infiltration (air leakage) at the Proud Green Home (PGH) at Serenbe,…

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Added by Chris Laumer-Giddens on April 15, 2013 at 10:30am — 1 Comment

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 …

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Added by Chris Laumer-Giddens on March 6, 2013 at 2:30pm — No Comments

Part II: Designing for High Performance, Controlling Heat Flow in Slab-On-Grade

In Part I of this series on designing for high performance, we discussed the control…

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Added by Chris Laumer-Giddens on August 15, 2012 at 6:15am — No Comments

Designing for High Performance: Slab-On-Grade, Part I – Controlling Moisture Flow

We’re just a few weeks away from a computer generated, self-guided interactive virtual tour of the Serenbe Residence near Atlanta, Georgia (Climate Zone 3a). We’re using REVIT software to generate the 3D model, then  …

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Added by Chris Laumer-Giddens on August 13, 2012 at 7:00am — 6 Comments

A Green Home - It's Just Good Design

What makes a Green Home green? Is it the bamboo floors? Maybe it’s the low-e windows or the extra insulation in the walls? What about a high efficiency heating and cooling system? Or maybe it's a plaque by your front door that says, “I'm Green!”?

How about all of the above and then…

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Added by Chris Laumer-Giddens on April 11, 2011 at 11:02am — 1 Comment

Google SketchUp for Home Energy Raters - Measurements Made Easy

Hey, HERS raters, what if I told you that you could get the volume of a multi-pitched roof for all of your home energy…

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Added by Chris Laumer-Giddens on March 21, 2011 at 7:30am — 5 Comments

Latest Activity

Sean Lintow Sr replied to David Meiland's discussion Air gap above floor insulation--how big is the impact?
"Yes & no - newer codes added in "Exception: As an alternative, the floor framing-cavity…"
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Dan Phillips replied to tedkidd's discussion It is time for government programs to end. They become monopolies that block market solutions.
"Not all states used deemed savings or modeled savings.  Don't throw the baby out with the…"
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Dan Phillips replied to David Meiland's discussion Air gap above floor insulation--how big is the impact?
"I wonder if you could do an experiment.  Leave a section of the floor insulation as is. …"
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Dennis Heidner replied to Tim Kendzia's discussion Cooling effect from solar panels
"I had missed your query originally made a couple of years ago.   Yes it does make a…"
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Dannie Jackson replied to Tom Smith's discussion Are Energy Efficient Windows worth the investment?
"If you look at the R factor of the window and compare it to old school single pain glass windows…"
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Dannie Jackson replied to tedkidd's discussion It is time for government programs to end. They become monopolies that block market solutions.
"Something that bothers me which is very similar to the concerns about agencies and programs…"
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Dannie Jackson replied to Tim Kendzia's discussion Cooling effect from solar panels
"I would assume two things about this idea, first of all you would definitely shade the roof and…"
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Charles Buell replied to David Meiland's discussion Air gap above floor insulation--how big is the impact?
"You want to install enough insulation that the room temp line is within the insulation---not…"
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