For those who haven't heard yet, we've reached a critical milestone with the Contractor Commitment. 51% of the SCL network voted to approve the language of the current draft. That's the mark we needed to hit, so we can move forward with planning the launch! Thank you to all those who have worked tirelessly over the last two years developing... Read more

Wood was the first material used in window frame and sash construction, and it remains popular for homes with its warm feel and relatively high energy efficiency.

BuildingGreen-Approved Windows

Wood windows must achieve an NFRC-certified unit U-factor of 0.22 or lower. Manufacturers also must demonstrate that their highest-... Read more

Team,

As you all probably saw, Boston is discussing using both CEI (carbon emission intensity) and EUI as basic scope of work.  Maybe the more surprising thing is China announced a new building code next year to include carbon emission analysis as a basic scope of work for all buildings.   New buildings in 2022, among other things,... Read more

Hello SCL,

We are getting back to our usual schedule of a pre-Greenbuild SCL Summit. We will be opening registration and announcing topics shortly. In the meantime, please pencil us into your calendar.

Date: September 25, 2023

Location: ZGF Architecture 600 14th St NW #800, Washington, DC 20005

Time: Soft start at... Read more

Hi Everyone!

Does anyone have a good resource for whole-building embodied carbon benchmarks broken down by building use and building category (structure, foundation, envelope, interior)?

I know of CLF’s 2017 Benchmark Study (great resource!) and the One-Click LCA study on European Buildings but are there any others?  I know many... Read more

Received answers from below questions from NIST Andy Persily

1. Is there a preferred bookends range of CO2 for both “optimal” energy and human performances?

Andy: No

2.Is the ASHRAE ventilation of 1000-1200 ppm average, probably not based on performance, suggesting current ventilation rate is sub-optimal with cognitive... Read more

Hi MEP Leaders,

We had a great conversation in our last monthly call about the function and purpose of this group, and what we can best do together. You can see detailed notes from that call here. And we'll soon be sending out a reminder about the October call (Tuesday, Oct 8, 2pm eastern).

One of the ideas from that conversation... Read more

We are working on a multi-family project in Hartford that is townhouse style so each unit has an exterior door. The client has requested electronic key fob hardware. Has anyone had experience with retrofitting a passive house door with electronic hardware or have they used a door that is already fitted with electronic hardware? 

Hello all,

We are having a mini office debate on fiberglass vs aluminum windows for use in schools (k-12) in Massachusetts. In the past we have always used aluminum windows on our schools, for durability. However, their performance is not as great as other products that are up and coming on the market. There is some hesitation to switch... Read more

We've got a great private (BG Communities/SD Leaders) webinar lined up for December. Register now to get it on your calendar. And let us know if you have suggestions or requests for future webinar topics!

Register here

Topic: Organizing Sustainability: knowledge management as the key to high performance

Description: Corey... Read more

Have you been perusing the recently launched Contractor's Commitment and thought to yourself, 'Companies are going to need more guidance/templates/resources if they're actually going to implement this thing'? Good--now's your chance to help develop those resources.

The Contractor's Commitment Working Group is meeting December 1, 1pm ET.... Read more

The Center for the Built Environment (CBE) at the University of California, Berkeley is conducting a survey to understand current practices and outlooks among design practitioners: architects, engineers, energy modelers, and related professionals. Our goal with this work is to improve climate change adaptation guidelines that support building... Read more

Hello, All.  Do we have folks in the group who helped develop Matter - a material management tool?  With its direct connection to Mindful Materials, it would be great to gain some insight from anyone in the know!  https://matterbuild.com/#/landing 

Welcome to the quiz portion of Better Window Decisions: Mastering the Performance and Cost Options.

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


1. Understand the energy metrics that inform how windows affect energy loads
2. Describe ways to avoid air leakage and condensation... Read more

Quiz body

Hi all,

I'm sure many (most? all?) of us have heard the changes to LEEDv4's energy standard are coming. If this is news to you, info on the balloted measures that have passed is available online here: https://www.usgbc.org/articles/leed-v4-energy-update-approved-member-ballot.

My question to MEP friends in the Green Commons: In... Read more