Durability is the first priority for roofing membranes since interior repairs and replacement waste material, time, and money.

BuildingGreen-Approved Roofing Membranes

BuildingGreen approves:

Hello, what acceptable levels of air quality are you using to evaluate natural ventilation strategies for your projects?  In our Living Building we only open windows when PM10, PM2.5, etc. are within LBC and WELL limits.  In a seasonally smoggy urban environment, this limits how often we can utilize natural ventilation even if the outside... Read more

Has anyone pursued the schools Mold Prevention IEQc10 successfully and have format for the documentation created they would be comfortable sharing? Our contractor is excited about pursuing this credit but no on our team has pursued it before.

thanks in advance!

Welcome to the quiz portion of LEED and WELL Product Labels: A Guide and Analysis!

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


Recognize product-related programs for LEED v4 BD+C, LEED v4.1 BD+C, WELL v1, and WELL v2 that contribute to the sustainability of projects and the health and... Read more

Gurus -

I'm looking for (or to build) a set of US district energy projects for developer-led mixed-use/residential neighborhoods/districts.  Does anyone have a resource for this or have started something similar?   

I am not a member of IDEA but utilize their site quite often. Any other resources come to mind?  I'd be happy to... Read more

Hey all,

Question for those of you who do in-house daylight analysis about modeling translucent glazing.

We use ClimateStudio for our modeling. It has plenty of material options for clear glazing but nothing for translucent glazing, and we are trying to understand the impacts of a translucent interlayer at some skylights. We can... Read more

Hey All!

One of the initiatives from our first meeting in Chicago was to gather and develop resources related to plug and process loads in buildings which will help us all with: energy modeling, equipment sizing and power distribution.  We had our first call this morning and are rolling.  Aspirations are that this could turn into a... Read more

Hi SD Leaders, my firm wants to make a case for conducting LCAs on all major projects. I'm curious what your experience is - how long does it take to conduct an LCA (for the analyst's effort and other project team members who attend meetings about the LCA and use its results), and the type of LCA software you're using. 

I feel sure you'... Read more

Has anyone here found an alternative to XPS for the void former?

A structural engineering contact was included in recent conversations about embodied carbon in insulation materials and brought to our attention that this is a common use for XPS that has nothing to do with its insulating properties. It is typically used where concrete is... Read more

This page contains our full User Agreement.

This Agreement sets forth the terms and conditions for your use of all webpages under both the BuildingGreen and LEEDuser names and domains, published by BuildingGreen, Inc. (collectively, the “Site”), including The BuildingGreen Report (formerly Environmental Building News) and BuildingGreen... Read more

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

Who else is playing in this year’s #SustainabilityScavengerHunt by BE+!?

Meredith Elbaum and team at Built Environment Plus are launching the second annual hunt this Friday. Teams of up to four people compete over a couple of weeks to complete missions and bring awareness to environmental topics.

It was a lot of fun last year - we... Read more

Welcome to the quiz portion of Behind the Logos: Understanding Green Product Certifications.

Learning Objectives

Upon completing this course, participants will be able to:


So I was testing assigning a BIT Expert to a Best Practice and I am having trouble getting the profile image to appear.  

When I upload a profile picture, it appears on the standard profile page from "My Account" but when I navigate to the BIT Best Practice 01, the image does not show and it takes me to another profile page that does... Read more