Last week at the Affordable Comfort Conference (also known as ACI), I co-moderated a panel called The Great Ventilation Standard Debate.1 Duncan Prahl of Ibacos proposed the session and rounded up a collection of some of best building science folks…
When I started Energy Vanguard in 2008, I didn't know how it would evolve and had thought early on that I may get back into home performance contracting. I did a couple of jobs, the last one being a crawl…
Today is Pi Day, named for that special number, 3.14159265358979323846264338327950288... The three dots at the end mean that I've exhausted my memory of the digits of pi, but pi doesn't care. It just goes on and on. Anyway, Pi Day…
The debate over how much to ventilate a home has been going on a long time. Last year, Building Science Corporation introduced their own standard to compete against ASHRAE 62.2 because of problems they felt weren't adequately addressed in the…
![Dead Possum Lying Next To A Disconnected Return Duct In A Nasty Crawl Space [Photo Courtesy Of E3 Innovate]](https://www.energyvanguard.com/wp-content/uploads/2020/05/crawl-space-return-duct-dead-possum-e3-innovate-900-annotated.jpg)
Indoor air quality (IAQ) is a big deal. It doesn't get near as much attention as energy efficiency or green building programs, but it should be one of the highest priorities for anyone who lives in a home. It's actually…
Burning fuels inside a house can lead to serious health and safety problems. Energy auditors do a variety of combustion safety tests to find potential hazards and recommend fixes. A couple of weeks ago at the Dry Climate Forum, I…
One of the points of contention in the great ventilation debate is whether a home's occupants should control their own ventilation systems. The issue came up again in my article last week, Does a Gas Furnace Dry Out the Air…
We're a few days into 2014 now. A lot of homes got built last year, and a lot got renovated, too. Quite a few homes got home energy ratings, and even more had blower door tests. Spray foam attics and…
I've been on the road this week. I flew to Chicago on Tuesday and gave two presentations at the Better Buildings: Better Business conference put on by the Energy Center of Wisconsin. After I was done there on Wednesday, I…
A new study from Lawrence Berkeley National Laboratory (LBNL) makes a bold claim that increasing ventilation rates can cut the number of student absences related to illness. The lead author on the paper, Mark Mendell, is quoted by LBNL's News…