Peter Yost (at https://building-wright.com/ )  is available to provide building science expertise, trainings, public speaking, building investigations, and more. Learn 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

Help regarding below...

OSHA, see below link, suggests 6' social distancing for unvaccinated or at-risk workers.

https://www.osha.gov/coronavirus/safework#role-employers-workers

Is your office going to maintain 6' social distancing for your workers?   Is the reason above because there are unvaccinated or at-risk workers?... 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

Hi Fellow Design Professionals: It would be great if you could participate in this important research on the status of professionals addressing extreme heat.

Thanks.

MAL

Planning for Extreme Heat Survey

Our research team from the University of Arizona and Arizona State University is studying how planning... Read more

Hi SDLers: See the great opportunity to weigh in on the 5th National Climate Assessment at a series of workshops in early 2022. 

Register here:

https://www.globalchange.gov/content/nca5-engagement-workshops?utm_sourc...

Hope all are staying well.

Mary Ann

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The AIA has just (finally!) amended the Code of Ethics and Professional Conduct to include new "Obligations to the Public" and  "Obligations to the Environment", that requires architects to advise their clients of their obligations to the environment, obligates architects to promote sustainable design and development, and to implement energy... Read more

Hi, folks! 

I was recently asked if BuildingGreen could connect prospective speakers to an event organizer in Chicago. Beyond the leaders in the BuildingGreen networks relayed, I wanted to share that the exercise led me to the Women and Climate speaker database: https://www.womenandclimate.co/speaker-database 

When filtering by... Read more

Lisa Richmond

For those folks who are on our retrofit electrfication roadmap post-palooza-sub-sub-working group ;-) , I thought you might be interested in these three guides just released from BEI in collaboration with S. Winter Associates.

Here are the three Playbooks:

Hello all,

We are looking at ways we can use our specs to reduce toxicity in projects and one step towards that goal may be to require RoHS compliant lighting, switches, alarms, meters, etc., as required by the Small Electrical Components exception in the Living Building Challenge. Based on LBC projects I have been involved with, it... Read more

HI All,

I have been tasked with putting together a cost comparison of doing a LEED v4 Gold building vs. making that same building Passive House. Obviously they are two different systems, with two different outcomes, and it's not really intended as a total apples to apples cost comparison, but more a value comparison for a developer.... Read more

How much will it cost to achieve LEED v4 certification?

“We’d love a green building, but can we afford it?”

“We’re required to be LEED Silver, but we’re not sure how to get there under the new rating system.”

“Sure, we’re interested in LEED, as long as it doesn’t cost extra.”

LEED v4 and cost uncertainty

With... 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

Welcome to the quiz portion of LEED vs. Green Globes: A Definitive Analysis

Note: If you are taking this quiz as a member of LEEDuser, please take the quiz here.

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


1. Highlight the most significant differences between LEED and Green... Read more

Can furniture be hazardous? You bet it can…

From flame retardants in foam cushions to unnecessary stain and dirt repellents on upholstery materials, everyday... Read more

Hello,

We’re looking for Design Energy Code Equivalents for Chinese commercial energy codes. Do any of you have  any good sources? I’ve only found data comparing ASHRAE 90.1 2013 to the Chinese Code at that time. We understand the Chinese code require a 65-75% energy savings over the baseline but don’t have good information for defining... Read more