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Latest Articles

Musings of an Energy Nerd

Another Look at Embodied Carbon

What is "embodied carbon"? I tried to answer that question in a 2018 article called “Carbon Emissions By the Construction Industry.” The issue is complicated, and requires builders to make…

Green Building News

Report: Trash-to-Energy Plants Face a Bleak Financial Future

Incinerators that burn municipal solid waste face a variety of economic challenges, with most remaining plants located in poor and minority communities where nearby residents are exposed to a variety…

Guest Blogs

Flood Survivors Become Flood Activists

This post originally appeared at Ensia. Susan Liley didn’t set out to become an activist. “A grandma, that’s all I am,” she says. But when her hometown of De Soto,…

Building Science

How Often Should You Change the Filter?

One of the topics I've hammered on for years is the inadequacy of using rules of thumb for sizing air conditioners. The standard one ton of air conditioning capacity for…

Green Building News

Massachusetts Urged to Adopt a Net-Zero Building Standard

Lawmakers and climate activists in Massachusetts are urging state regulators to add a net-zero provision to statewide building codes. The Massachusetts Climate Action Network, a nonprofit advocacy group, is circulating…

Featured Blogs

Musings of an Energy Nerd

Contemplating residential energy use

May 24
Another Look at Embodied Carbon
May 17
More Bad News on Ventilation System Effectiveness
May 10
Sandwiching Roof Sheathing Between Two Impermeable Layers

Q&A Spotlight

An in-depth look at reader’s intriguing questions

May 13
My Windows Were Installed Incorrectly. Now What?
April 29
How to Wire for LED Lighting
April 15
Insulating a Raised Slab

Guest Blogs

Fresh perspectives from designers, builders, and industry experts

By Laurie Mazur
Flood Survivors Become Flood Activists
By Maria Gallucci
Energy Equity: Bringing Solar Power to Low-Income Communities
By Jim Robbins
How Green Are Mass Timber Buildings?

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Construction-detail Drawing Library

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A collection of one thousand construction details organized by climate and house part (roofs, walls, foundations, etc.). Each detail can be downloaded as a PDF for printing or as a DWG to incorporate into your CAD software.

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Musings of an Energy Nerd

Musings of an Energy Nerd

Energy-Smart Insight for Builders and Designers Martin Holladay’s new book, Musings of an Energy Nerd, is filled with the in-depth information that builders, designers, and homeowners need to make homes more energy-efficient.

For Pros By Pros: Graphic Guide To Frame Construction

Insulate & Weatherize (EBook)

Renovation 4th Edition

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