Building Envelope
The building envelope, or building enclosure, protects us and the building interior from the elements and enables occupant comfort. The building envelope includes the cladding, air barrier, weather barrier, thermal insulation, and other components.
Building Envelope
Deep Dives
Get up to speed on complex topics. You can also earn CEUs and download PDF Spotlight Reports.
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Rethinking the All-Glass Building
Feature Article
Is it time to end our love affair with the all-glass building? A lot of proponents of high-performance, green design certainly think so-while other respected architects, including some leading green designers and energy experts, argue that all-glass can work well if done right.
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Avoiding the Global Warming Impact of Insulation
Feature Article
Insulation is key to reducing carbon emissions from buildings. But the blowing agent in extruded polystyrene and spray polyurethane foam offsets much of that benefit.
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Passive House Arrives in North America: Could It Revolutionize the Way We Build?
Feature Article
The Passive House standard, imported from Germany, sets a high bar for energy performance in buildings. But some see it as inflexible and inappropriate for some U.S. climates.
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Design for Adaptation: Living in a Climate-Changing World
Feature Article
Even if we stopped emitting greenhouse gases tomorrow, rising global temperatures would still bring major changes to the climate system and our way of life. This article offers solutions for designing buildings that not only mitigate our impact on the global climate, but also adapt to the changes that are coming-and those that are already here.
Quick Takes
Jump straight to the essentials with these short explanations of green building concepts.
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Sharing the Skyline with Birds
Explainer
Buildings are major killers of birds, but thoughtful design can help.
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How R-Value Is Calculated
Explainer
You know what R-value is, but how do they figure it out? And is it really a reliable measure of insulation performance?
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How Insulation Works
Explainer
Understanding how insulation works can help us find the right material for a particular project.
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Thermal Bridging
Explainer
Thermal bridging, when one material conducts heat much better than materials around it, can reduce the effectiveness of insulation to a surprising extent.
Product Guidance
Unbiased information from our product experts helps you separate green from greenwash.
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Mineral Wool Batts Now Formaldehyde-Free
Product Review
Thermafiber and Roxul have introduced the first formaldehyde-free mineral wool batt insulations, following the example set by the fiberglass insulation industry.
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Façade as Ventilation: Moving beyond Open Windows
Product Review
AirFlow Panels supply air and recover energy on commercial building façades, improving air quality while reducing energy and space requirements.
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BuildingGreen Announces Top 10 Products for 2017
Product Review
Our innovative Top 10 product selections reduce stormwater and wastewater, improve efficiency and IAQ, and contain fewer hazardous materials.
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Greenest of the Green Energy-Saving Products from Greenbuild
Product Review
The Greenbuild 2015 expo featured some exciting innovations, including a DC-powered “net-zero energy zone.”
In The News
We break news down to the essentials and provide expert analysis.
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Will Aggressive Performance Goals Fit Under Google’s Glass Tent?
News Analysis
The design of Google’s green headquarters hinges on new technologies, like a “glass fabric” enclosure.
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Polyiso Manufacturers Turn Blind Eye to Problems at Cold Temperatures
News Analysis
R-values that fluctuate with temperature can be a serious problem with polyiso in some climates. New design guidance could help.
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Move Over, Foam: Sub-Slab Mineral Wool Is Here
News Analysis
Roxul is now promoting its rigid mineral wool for sub-slab applications, offering an alternative to extruded polystyrene (XPS).
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A New, Cost-Effective Take on Vacuum Insulation
News Brief
“Modified atmosphere insulation” technology may be able to rival the performance of vacuum insulation panels at a more affordable price.
Perspective
Thought-provoking opinions from the most trusted minds in sustainability.
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Combining High-Performance Windows with Insulating Shades
Op-Ed
A manufacturer weighs in regarding excessive caution when using high-performance cellular shades.
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How Much Insulation Is Enough?
Blog Post
Most leading energy experts today recommend installing a lot more insulation than is common practice. This wall for a Passive House in Seattle will hold about a foot of insulation.
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R-etro Leaves Some Gaps Unfilled
Op-Ed
Reader Paul Eldrenkamp argues that although the R-etro foam insulation system makes installation easy, it doesn't make tricky detailing any easier.
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Poor Insulation Work Adds to Home Retrofit Challenges
Op-Ed
Reader Paul Eldrenkamp encourages more widespread use of HERS ratings to measure the effectiveness of insulation retrofit work.
Learning Resources
Syllabus supplements and CEU content, with automatic reporting for AIA and GBCI.
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