On one of my recent quality assurance trips for our HERS raters, I made a discovery of a building envelope problem that's best told in pictures. When I went into the attic, what I noticed first was that the blown…
Ah, the meaning of the Second Law of Thermodynamics! I might as well ask, What is the meaning of life? It's a fascinating question and one that we can approach from a lot of different angles. Since this is a…
New houses certified in the LEED for Homes program will be required to have 100% windows in all above-grade walls once the new 2012 update is approved by US Green Building Council (USGBC) members this summer. The LEED certification program…
I returned home last night from the 2012 Affordable Comfort National Conference, exhausted and exhilirated after three days hanging out with 1700 of my closest friends in the home performance industry. Here's a quick review based on what I heard…
GUEST POST: As the Affordable Comfort conference kicks off today, it's appropriate to take a look at what comfort is and how we construct buildings to have the best shot at getting it. Robert Bean is an engineer in Calgary…
Whether you want to build a new home or fix an old one, the way to ensure that you get the best performance is to do the building envelope right. That means installing the right amount of insulation and installing…
Yesterday I was doing a home energy rating for quality assurance in Augusta, Georgia, and the house I was in had a bonus room. Bonus rooms are often the least comfortable room in a house, and the main reason is…
After reading an article by Joe Lstiburek titled Just Right and Airtight, I got to thinking about what we've been spending a lot of time on lately, and that is what we call the “New Big Holes.” Of the 350+…
One of the great benefits of going out into the field to do quality assurance and training for HERS raters is that I get to see what's going on in new construction. Last week I visited HERS raters in Nashville,…
On my thousand-mile quality assurance road trip last week, I visited a house that was designed to produce more energy than it uses, making it a net zero energy home. You can take any house all the way to net…