Martin Holladay

Martin Holladay built his first passive-solar house in northern Vermont in 1974, and he has lived off the grid since 1975. He has worked as an editor since 1999 and is now senior editor at both Fine Homebuilding and GreenBuildingAdvisor.com. His weekly blog at GBA, “Musings of an Energy Nerd,” focuses on energy-efficient residential construction.

How Efficient Are Heat Pumps, Really?
Heat pumps have higher efficiencies than systems that rely on fossil fuels, but the cost of electricity and fuel drives the decision.
FHB Summit: How to Build Well, Simply
Energy Nerd Martin Holladay presents a no-nonsense guide to minimizing costs and maximizing energy-efficiency when building a new home.
Vapor Barrier Over Mineral Wool
When installing skylights in our living room in Atlanta, Ga., we discovered some rot that led to us having to demo and reframe around our fireplace. I’m happy to say…
Bruce Harley’s Minisplit Tips
A Vermont energy consultant provides expert advice on using air-source heat pumps to heat and cool a home.
Why is There Water in My HVAC Ducts?
The Energy Nerd supposes that condensation is the problem, and he offers a few possible solutions.
What Causes Frost to Form on Sheathing?
Night-sky radiation cooling is a common and typically harmless occurrence–and the likely culprit.
Revisiting Net Zero Energy
With PV panel prices continuing to drop, does it make the most sense to invest in solar, add more insulation, or do both when building an energy-efficient home?
New Homes: 9 Things You Don’t Need, and 5 You Do
As construction materials and building-science principles evolve, the details we include in our new homes have to too.
Brick Chimneys Are Incompatible With Airtight Homes
Energy Nerd: The possible remedies are all imperfect.
What’s the Definition of “Green Building”?
Martin Holladay analyzes 10 factors for eco-friendly home design.

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Martin Holladay

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