Tag: heat flow
-
My Top 10 Building Science and Energy Efficiency Ideas of 2015
Prime: prime Subtitle: A year-end review of the articles and ideas that made me think Images: The year 2015 is almost finished. I’ve written 70 articles in the Energy Vanguard Blog and this one makes 49 here at GBAGreenBuildingAdvisor.com. I’ve been to a bunch of conferences and talked to a lot of people. A lot…
-
The Fundamentals of Series and Parallel Heat Flow
Prime: prime Subtitle: The R-value of a building assembly depends on how heat can flow through it Images:&…
-
Calculating Heating Degree Days
Subtitle: A lot of people know the number of HDD for their location — but where does that number come from? Images: Let’s say you did some work on your home to make it more energy-efficient: air sealing, more attic insulation, and a duct system retrofit. You’ve got your energy bills for 12 months before…
-
The Diminishing Returns of Adding Insulation
Subtitle: A look at the numbers behind this oft-heard expression Images: …
-
The Top Two Reasons Powered Attic Ventilators Are a Waste of Money
Subtitle: Despite how fervently some people believe in them, powered attic ventilators don’t pass building science muster Images: Three years ago I wrote an article titled, Don’t Let Your Attic Suck: Power Attic Ventilators Are a Bad Idea. Nearly a hundred thousand page views and 93 comments later, it’s still generating lots of heat. I…