The most recent blogs at Green Building Advisor

Exterior Insulation for an Ugly Brick Building

Posted on April 13, 2018 by Martin Holladay in Musings of an Energy Nerd

How do you insulate an old building with exterior walls made of structural brick? The best approach, according to building science professor John Straube, is to install a continuous layer of exterior insulation. Straube told me, “It’s a great solution for ugly buildings.”

Saving Sustainably: An Introduction

Posted on April 12, 2018 by Matt Bath in Guest Blogs

Editor's note: This is the first in a series of blogs detailing the construction of a net-zero energyProducing as much energy on an annual basis as one consumes on site, usually with renewable energy sources such as photovoltaics or small-scale wind turbines. house in Point Roberts, Washington, by an owner/builder with relatively little building experience. You'll find Matt Bath's full blog, Saving Sustainably, here. If you want to follow project costs, you can keep an eye on a budget worksheet here.

HVAC Design Requirements in the International Building Codes

Posted on April 11, 2018 by Allison A. Bailes III, PhD in Building Science

Building codes, especially those related to energy efficiency, have improved a lot over the years. With building enclosures, this has made a big difference. We now have more insulation, less thermal bridgingHeat flow that occurs across more conductive components in an otherwise well-insulated material, resulting in disproportionately significant heat loss. For example, steel studs in an insulated wall dramatically reduce the overall energy performance of the wall, because of thermal bridging through the steel. , and tested air barriers. On the mechanical side, the improvements are significant — reduced duct leakage and mechanical ventilation in airtight homes — but there's still a gap between some code requirements and what's being installed.

Urban Heat: Can White Roofs Help Cool World’s Warming Cities?

Posted on April 10, 2018 by Fred Pearce in Guest Blogs

This post originally appeared at Yale Environment 360.

What Makes a City Green?

Posted on April 9, 2018 by Anonymous in Guest Blogs


There are many indexes that aim to rank how green cities are. But what does it actually mean for a city to be green or sustainable?

Reports from Owners of High-Performance Homes

Posted on April 6, 2018 by Martin Holladay in Musings of an Energy Nerd

At Green Building Advisor, we urge readers who are planning to build a new home to seek out a builder who understands energy-efficient construction methods. Is this advice easy to follow? And once the new owners move into their energy-efficient home, are they happy with the home’s performance?

New Life for Toxic Land

Posted on April 5, 2018 by Lynne Peeples in Guest Blogs

This post originally appeared at Ensia.

Awaiting Day Zero in Cape Town

Posted on April 4, 2018 by Adam Welz in Guest Blogs

This post originally appeared at Yale Environment 360.

Learning to Co-Exist With Wildfires

Posted on April 3, 2018 by Kendra Chamberlain in Green Building Blog

This post originally appeared at Ensia.

Does This Roof Need to Breathe?

Posted on April 2, 2018 by Scott Gibson in Q&A Spotlight reader Erik is building a new house in southwestern Washington state, and he's thought through most of the details with care. But as the time nears to install the standing-seam metal roof, Erik realizes he may have overlooked something important in the construction details.

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