Blog

LEED v4.1: “Not a Structural Change”

Version 4.1 for BD+C and ID+C, coming out in December, is about creating “stepping stones,” not about changing the fundamentals.
by P.J. Melton

I sat down with Melissa Baker of the U.S. Green Building Council (USGBC) at Greenbuild to talk about LEED v4.1 for Building Design and Construction (BD+C) and Interior Design and Construction (ID+C). Baker is senior vice president for technical core. Here’s what I found out.

First, the timeline: USGBC will release a draft of the rating system in December. You’ll have a month to peruse that while they build up the registration and submittal infrastructure. The beta will start in January 2019.

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The Sustainable Spec Language You Should Be Using

Selecting the greenest products doesn’t do any good unless strong specifications support your choices. Here’s some language you can use.
by Anne Hicks Harney

Editor’s note: Guest blogger Anne Hicks Harney, of Long Green Specs, is our partner in providing product vetting services. Harney offers guidance on writing green specs and on finding products for LEED v4, WELL, and beyond.

All of us in the design professions need to do a better job of prioritizing our product selections, but we also need to find a way to get our first-choice products into the actual building.

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R-10 Vacuum-Insulated Glazing

For real this time?
by Peter Yost

For twenty years or so, companies like Pilkington (Spacia) have been cranking out R-5ish (center-of-glass) vacuum-insulated glazing (VIG). The attraction of glazing units with a very thin profile, relatively low weight, and a high level of performance is strong, particularly for retrofit applications.

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LEED, Carbon Accounting, and the Metrics of Progress

A case study of Legrand’s triangulation between LEED, Better Buildings Challenge, and GHG emission reduction efforts
by Jenny Carney

I count myself among a subset of sustainability professionals who work in the context of both building performance and enterprise-level strategy and planning. This has long required some amount of code switching between the vernacular of the corporate sustainability world (where folks talk the language of CDP, GRI, GHG inventorying, and reductions from baselines) and the green building world (with a separate set of acronyms, terms, metrics, and relative comparisons).

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Do Solar Panels Need to be Cleaned?

How the accumulation of dust, pollen, and bird droppings affects the energy production of a PV array
by Peter Yost

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I was at my brother’s house in Lee, New Hampshire, recently and looked up to see that his photovoltaic (PV) panels looked a bit dull (see Image #2 in the slideshow). His PV array is easy to get to—the long north slope of his roof has a walkable 5:12 pitch—so we went up and took a closer look.

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Product Vetting for LEED and WELL: BuildingGreen's Top 10 Tips

Learn how to find products for LEED and WELL projects in this webinar.
by the BuildingGreen editors

Are you struggling to find products for your LEED or WELL project? We’ve been there, and we know how to help.

In this hour-long free webinar, BuildingGreen's Nadav Malin and our partner Anne Hicks Harney of Long Green Specs share their tips finding green, healthy products that meet the requirements for LEED and WELL.

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Material Transparency for LEED v4: EPDs and HPDs for Metal Studs

Reducing your building’s carbon footprint or health impacts? Going after new LEED credits? Transparency documents for steel studs can help.
by Anne Hicks Harney

Editor’s note: Guest blogger Anne Hicks Harney, of Long Green Specs, is our partner in providing product vetting services. Harney offers guidance on writing green specs and on finding products for LEED v4, WELL, and beyond. This is the first post in a series focusing on transparency documents for specific product categories.

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Understanding and Measuring Mean Radiant Temperature

Mean radiant temperature, a major component of thermal comfort, is easy to measure.
by Peter Yost

[bg-slideshow]All the way back in 1993, one of my first research projects at the NAHB Research Center—now Home Innovation Research Labs—was assessing the performance of radiant ceiling panels for the Department of Energy’s Advanced Housing Technology Program. (The final report was titled “An Evaluation of Thermal Comfort and Energy Consumption for the Enerjoy Radiant Panel Heating System.”)

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Zero-Energy Buildings for All

Buildings need renewables—but we need to look beyond the site.
by Joshua Radoff

No man is an island, and neither is a building.

And yet there is increasing movement for buildings to reach net-zero energy (NZE) or net-zero carbon (NZC). Architecture 2030 wants all buildings there by 2030. Many in the LEED community want this as a requirement for achieving LEED Platinum today. And California has stated it as a goal for all residential and commercial buildings by 2020 and 2030, respectively.

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Zero-Energy Buildings for All

Buildings need renewables—but we need to look beyond the site.
by Joshua Radoff

No man is an island, and neither is a building.

And yet there is increasing movement for buildings to reach net-zero energy (NZE) or net-zero carbon (NZC). Architecture 2030 wants all buildings there by 2030. Many in the LEED community want this as a requirement for achieving LEED Platinum today. And California has stated it as a goal for all residential and commercial buildings by 2020 and 2030, respectively.

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LEED v4.1: EBOM Drops

Lots of credits are out, Interiors are in, and we’re seeing our first direct measurements of carbon in LEED.
by P.J. Melton

The U.S. Green Building Council (USGBC) has released a first draft of LEED v4.1 for Building Operations and Maintenance (LEED O+M). If approved by the members, this new set of rating systems will represent a radical shift in how LEED measures the performance of existing buildings.

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