Nathan Christensen's Blog – November 2010 Archive (5)

The Many Shades of One Color: Part 1

Green is almost undeniably one of the most marketed colors as it relates to the environment, sustainability, and energy. But what exactly does “green” mean in relation to environmental and energy issues?

More importantly, can a modern product or process really be considered green, and if so, by what benchmark? For example, we know that CFLs use less energy than incandescent lights, but does consuming less energy really make a product greener?

To begin, the word green has… Continue

Added by Nathan Christensen on November 29, 2010 at 11:00am — 2 Comments

Let's Talk Preservation - Part 2

In my previous journal entry, “Let’s Talk Preservation: Part 1”, I briefly touched on why Energy Star certified homes, despite their high levels of efficiency, still inflict considerable damage to the


We know that Energy Star homes reach their certification by making use of high efficiency windows, appliances, insulation, and HVAC systems. However, regardless of how little energy a new home consumes,

it still requires exceptional levels of energy to…


Added by Nathan Christensen on November 19, 2010 at 1:30pm — No Comments

Let's Talk Preservation - Part 1

Every day, while traveling to or coming home from work, I hear an advertisement for new Energy Star homes under construction or ready for purchase. While I have the utmost respect for what Energy Star

certification stands for and hopes to accomplish, I don’t believe I could ever own one myself. Energy Star and other similarly accredited homes offer quite a bit in terms of energy efficiency, but in terms of lessening the homes impact on the environment…I’m not entirely…


Added by Nathan Christensen on November 15, 2010 at 2:00pm — 1 Comment

It's Not All About The "R"

A few months ago I had lunch with a friend of mine who recently bought

an older historic home in southern Ohio. The subject of insulation and

heating costs came up and we engaged in a bit of a debate over what kind

of insulation to use. Now, I don’t believe either of us won, primarily

because I don’t think an ultimately right answer exists for the topic

we were debating. The topic you ask? “How big of a role does the

R-Value really play in insulation on an… Continue

Added by Nathan Christensen on November 8, 2010 at 1:20pm — 1 Comment

In Winter, Those Who Are Proactive Profit The Most

I hate to be the bearer of bad news, but in the next few weeks, old man winter will make his annual appearance once again. Unfortunately (or fortunately, if you like winter), with his arrival, snow and cold winds are close to follow.

To prepare for the oncoming winter months, use this time in late fall to find weak areas in your homes thermal shell. (For the sake of clarification, I define “Thermal Shell” as the…


Added by Nathan Christensen on November 4, 2010 at 1:30pm — 1 Comment


  • Add Videos
  • View All


Latest Activity

Benny hani replied to Benny hani's discussion Manual J online
"Thanks Bob"
11 hours ago
Benny hani replied to Benny hani's discussion Manual J online
"Thank you Isaac"
11 hours ago
Bob Blanchette commented on Amber Vignieri's blog post Even with Polar Vortex, Hourly Pricing Participants Saved
"Looks like the days of paying a fixed amount per KWh are rapidly coming to an end. Many utilities…"
12 hours ago
Bob Blanchette replied to Benny hani's discussion Manual J online
"Be sure the size that you ACCURATELY calculate actually gets installed. Often…"
13 hours ago
Bob Blanchette replied to Sean Lintow Sr's discussion Water Saver or Gimmick? in the group Best Practices (Residential)
"The problem is these devices NEVER pay for themselves. Water is cheap, about $3 per 1,000 gallons…"
13 hours ago
Bud Poll replied to Rob Madden's discussion Blower Door Testing on Energy Star v3 home
"Where was the blower set up, front door, other?  Was if located in an unobstructed area, not a…"
David N. Armington liked John Poole's discussion Two Part Epoxy and Repair of Structural Wood
David N. Armington joined John Poole's group

Historic Home

Historic and vintage homes are significant to our cultural heritage, yet often lack energy…See More

© 2016   Created by Lawrence Berkeley National Laboratory.   Powered by

Badges  |  Report an Issue  |  Terms of Service