I was recently asked about potentially specifying concrete with wood nanoparticles and concrete with biochar as a way to further lower the embodied carbon and to increase concrete strength.  These approaches are something I know nothing about, and wondering if anyone in this group has any experience and/or observations that might be relevant to... Read more

Hello Everyone,

LHB continues our search for a Regenerative Design Specialist to oversee our multi-discipline firm's goal to reach regenerative design.  This is a leadership position with unique opportunities to influence architecture and engineering across many market sectors. 

We understand it's been an exhausting year and that... Read more

We have several projects that are small enough that we don't hire consultants to run energy models. I just received permission to do some training so that I can run these models myself. I am looking at doing this training on eQuest:

https://www.udemy.com/course/equest-energy-modelling-detailedtraining/?c...

I am thinking it would... Read more

Thanks to everyone who joined us for the Show and Tell at Greenbuild! Here are slides from the presentations:

Hi All,

I'm working on a LEED for Schools project under 2009, and received some amorphous comments back about our Mold Prevention Plan. We used the LEEDuser template as a guide, while also referencing the EPA document the credit is based around, but the reviewers feel we haven't provided proper metrics. The EPA plan is something like... Read more

Welcome to the quiz portion of Eight Tips for Passing the LEED v4 AP BD+C Exam.

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


1. List important tables and calculations from the reference guide.
2. Explain what's pertinent about credit options and documentation.
3. Detail... Read more

I'm hoping for some help answering the question of whether buildings/communities should pursue net-zero energy on site versus investing in new renewable energy (i.e. through the electric utility) that can be built at a more efficient scale elsewhere in the state. Our utility is asking us this question as we are working through how to get the... 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 

It’s Earth Day! In celebration, we’re offering full Premium subscriber access to BuildingGreen content, news, and product guides for all Peer Network members for the next six months. 

We’re sharing this unbiased, rigorous content with you through the coming summer and fall, with access to our: 

Premium content, guides, and... Read more

THIS WEBINAR PURCHASE AND REGISTRATION IS CLOSED.

Thermal comfort is a science of both physics and people, always a tough... Read more

ASHRAE posted this year's list of honors and right there at the top of the list is our SMEPL colleague, Cindy Cogil - now able to add FASHRAE to her signature block!  Well done, Cindy and congratulations to ASHRAE for recognizing your accomplishments.

Exterior doors often have poor insulation and seals that allow air through.

BuildingGreen-Approved Exterior Doors

BuildingGreen has different criteria for commercial and residential exterior doors.

Commercial swing (hinged) doors must be NFRC-rated, certified, and labeled for U-factor. They have a maximum air leakage of 0.... Read more

I am getting started on a research project to evaluate the feasibility, costs, and benefits of using phase change material (PCM) to passively regulate temperature in Minnesota buildings. If anyone has experience designing with PCM, installing PCM, or occupying buildings with PCM, can you share any lessons learned that would be relevant as... Read more

If you have been wondering about the Contractor Commitment, we have an update for you!

Several weeks ago, the subgroup leaders and the Steering Committee members gathered to agree on a basic structure for the Commitment. The idea was to align the basic expectations around issues like how many tiers there would be, what would be disclosed... Read more

Hi all!

I'm working on my first energy positive / passive house multifamily building and trying to figure out the trash/recycling chute. I am curious what solutions you have employed to make the trash chute air tight? We have excluded the whole chute from the envelope. Do you use airtight doors (and which ones?) at each floor trash/... Read more