If you haven't already, please post a brief introduction to the group with your firm, the roles you play especially as they focus on sustainability, a bit about your background and anything you are particularly passionate about. Thanks! 

Welcome to the quiz portion of The Hidden Science of High-Performance Building Assemblies.

Learning Objectives
Upon completing this course, participants will be able to:


1. Define hygrothermal pressure and explain what it requires of water, air, and thermal barriers in high-performance assemblies.
2. Explain... Read more

Hello Everyone!

Please mark your calendars and stay tuned for more information regarding an All Peer Networks 2020 Summit Season Closing August 10th, 3-5pm ET (Noon-2pm PT).

Register HERE to get it on your calendar! The staff at BuildingGreen are looking forward to planning a fun and engaging cross-network event focused on this... Read more

Hi Everyone!

I'm Emily, GCI General Contractor's Sustainability Manager in San Francisco. Nice to meet you all.

I started with the company in 2013 and since then we've doubled in employees. I have been handling sustainability solo, until about 8 months ago, when we hired Alejandra Arce Gomez full-time to help manage the... Read more

This article just came up in my news feed. I thought you’d all like to read it. I will point out that C&D-specific MRFs have told me that they are really good at single-stream C & D waste, as long as the drywall is pulled out.  Any drywall in a single-stream C & D dumpster ends up in the landfill. Drywall just breaks apart and gets... Read more

Hi folks,

I'm looking into lower-carbon pipe options for HVAC and plumbing. The MEP 2040 has slides from a Buro Happold study in 2020 showing PEX to be much lower in embodied carbon than copper, which is unsurprising. CPVC is also a lower-carbon option.

But PVC has its issues and neither PVC nor PEX are recyclable (especially if... Read more

Hey SDL,

I'm curious if anybody out there has developed specification language requiring a certain level of airtightness (as assessed via one or a series of blower door tests) for a commercial project when it is not going for a Passive House certification and a blower door test is not required by code--basically, something in the... Read more

We have an MEP engineer that is calculating peak loads at about 6 times passive house levels on a large commercial building that is at or near passive house levels of insulation and air infiltration. We suspect one reason is that he is figuring a 50% efficiency level for the ERV. We are showing him ERV systems with 80-90% efficiency, but they... Read more

Hi there colleagues!

Out of curiosity, do you plan on attending Greenbuild in person in San Diego in September? My staff asked me if we were going and my answer is partially contingent on the extent to which attending would mean getting to see some of our favorite people (read: all of you). Looking forward to taking the temperature of... Read more

A brief non-technical rant about OneClick LCA - from someone who is not actually USING the tool, but lobbying for its access.  Wondering if you all have better intel, or if it is just me.

We are working on a number of projects for which te teams are using OneClick LCA - for some cases it has a better international data set than others. ... Read more

Gather with the Changemakers in Sustainable Design

You are invited to join BuildingGreen and your peers for the Summit that has always delivered on driving our movement forward. Over three days of collaboration, workshops, learning, sharing, networking, and socializing, we’ll explore what Sustainability Leadership looks like in 2023 and... Read more

Hi all,

We’re thrilled to share that registration is now open for our All-Networks Workshop on Integrated Design + Delivery from the Inside Out! The workshop will be held on July 15th at Miller Hull’s Seattle office, right before the Summer 2024 SDL Summit. Register now before it fills up, and please feel free to email me with any... Read more

Hello,

We have a mass timber purpose-built rental project specifying flooring at the moment and are trying to find a healthy flooring option while managing acoustics with CLT floorslabs. We don't typically spec vinyl flooring due to the health concerns around PVC, but the project is budget-conscious, and our flooring supplier is... Read more

Katherine keeps BuildingGreen’s physical and digital spaces running smoothly. A graduate with honors from the University of Iowa, Katherine has a background in filmmaking and administration. She lives in southeastern Vermont with her partner and enjoys hiking, board games, writing, and cats.

Gypsum is calcium sulfate dehydrate, which is mined or produced as a byproduct of flue gas desulphurization (FGD) from coal-fired power plants. FGD gypsum may contain trace contaminants from coal processing, but not enough to represent a hazard to users. Years ago, some imported products created indoor air quality problems that required... Read more