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

testing

Has anyone used a commercial heat pump water heater for a large protect?  I have found a few manufacturers for this technology, but want to make sure this is a viable and cost approach to electrical eliminate gas on a path to all electric.

Hi all,

We know preparations for Greenbuild are well underway for many of you. We also know that there will be many things competing for your time while you're there. Here's one more to consider! We don't have all the details solidified yet, but wanted you to know sooner rather than later for planning purposes.

We hope you’ll... Read more

Looking for an example or case study for a building utilizing a radiant heating/cooling in climate zone 4a. General use type is office with some public assembly spaces, total of 85,000 sf.

As usual, everyone, especially mechanical engineer, is terrified by the thought of "condensation." So far, I read a DGWW case study, "Energy... Read more

Hi Everyone, 

This is quite last minute (due tonight) but please see below for an opportunity to email comments to EPA supporting national building material reuse measurement/methodology. Submission is easy, just a short email supporting C&D/reuse and any other thoughts on what to include/exclude in material pathways for reuse beyond... Read more

Hi: Great to see so many of you at AIA COTE Top Ten last week.  I'm forwarding the message below for those of you who know Marsha Maytum and can contribute to this important effort. Deadline is next Friday June 23rd!Thanks.

Mary Ann

Hello, friends,

During A'23, Je’Nen and I discussed our desire to send Marsha photos we have... Read more

Emma's role at BuildingGreen includes coordinating social media activity, setting up and scheduling weekly emails, and completing various marketing projects. She is also responsible for ensuring that members receive continuing education credits.

Hi all,

I'm curious if anyone has insight as to the "New Federal Building Performance Standards" that were announced in May of 2021 and then referenced again when E.O. 14057 came out. The memorandum for heads of agencies that was sent out with E.O. 14057 said that the CEQ would issue these standards, but I can't find a commitment to when... Read more

Here is a fundamental question regarding measuring operational carbon emissions that I'm sure many of you can clarify for me:  Let's say you are considering design options and you want to know the relative contribution of GWP of adding an additional inch of continuous insulation to the building envelope.  The GWP from embodied carbon will... Read more

Hello there, 

I am working on a project with indoor plants and active green walls. I would like to design lights for growing plants and people at the same time (which seems to be a non-obvious problem). 
 

I was thinking of Philips, GE, Shneider Lighting, etc. Would you recommend someone I could talk to and eventually engage... Read more

Is LEED Online mind-numbingly slow today for anyone else? Or is it just me? I may give up and try again tomorrow. Frustrating as I was hoping to submit a final review today. :(

The Water Sub-Group met today. This group is working on three items: 

1. Project Water Plan Template

2. Project Water Tracking Form Template

3. Research and Resources Document

The Meeting minutes are attached. The next meeting is 5/19/20 @ 2:30 PM CST, via webex and teleconference.  Please contact me if you would... Read more

CEUs are available for reading all the building-envelope product guides and primer. Click here to learn more and take the quiz.

Standard spray polyurethane foam (SPF) insulation is made using blowing agents with extremely high global warming potential (GWP), which can cancel out much of the potential energy savings from use over its life... Read more

Hi All- I'm posting this question for my ZGF colleague Chris Chatto.  Somehow he wasn't initially included on the SDL list as it moved from Wiggio to BuildingGreen's (Green Gurus) site.  Happy New Year, Lona

Hi everyone –

We could use your help in developing a determining a “red list” premium for a feasibility cost... Read more

https://www.bostonglobe.com/metro/2018/06/04/new-china-policies-spark-di...

New China policies spark disarray in region’s recycling industry
Buried in the mountains of refuse at Casella’s recycling plant in Charlestown are tons of material that should have gone straight to the landfill — from tires and pots to lobster buoys and... Read more