I wanted to alert you to this opportunity to help develop a new ASHRAE Standard. They are especially looking for people who have not served with ASHRAE previously (aka the usual suspects)

ASHRAE Standard 242P, Standard Method for Calculation of Building Operational Greenhouse Gas Emissions

1 Purpose: This standard provides a... Read more

Hi all,

We are about to start a affordable housing passive house project in Boston and in a few presentations I've seen great signs that builders use to try to get the point across to subs as to how important air sealing is. Some are even quite funny! The builder we are working with does not have a sign like this, but is open to ideas.... Read more

I just saw this post from Conor on LinkedIn.

Starting in January 2019, all new Columbia Construction Company projects require LED temp lighting.

Are others doing this too? Frankly, given all the benefits and how quickly the industry is matured, it's hard for me to understand why anyone would use anything other than LEDs on a job.... Read more

Columbia already offers access to free EV charging for our field employees. Of the few projects that have have opted in so far, we've had to custom design and intall EV charging setups. It's good that we're doing this, but it won't scale quickly enough and cost effectively.  I think a practical next step is working with trailer companies so... Read more

Carpet is comfortable, offers good sound control, and offers great aesthetic options. But it is typically made from petrochemicals, and carpet and its adhesives can offgas VOCs. It is also a challenge to recycle, increasing the chances that it will be incinerated or disposed of in a landfill. Broadloom carpet cannot be readily repaired if... Read more

Greetings Gurus, following the AIA COTE Design for Economy concept, does anyone have a resource for a list of building efficiency ratio "targets" by space type? I've always struggled with this initiative. 

Hi Fellow GG: I just wanted to make sure everyone saw the great announcement from the White House yesterday about Code updates to address energy efficiency and resilience. It's great to see these kinds of initiatives that hopefully can continue for a few more years. So let's try to take advantage of them (said by someone who lives in Missouri... 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!

I'm hoping someone knows the anser to this question. For the LEED ND certification the minimum requirement is "The LEED project should contain at least two habitable buildings and be no larger than 1500 acres." Does habitable mean buildings with dwelling units?

Apologize in advance if this has been posted before but we are trying to get manufacturers of stage curtains to give documentation that proves that the product does not have halogenated fire retardants. Manufacturers say they don't have them or concentrations are limited to 100ppm but they don't seem to have documentation to provide for it.... Read more

The BuildingGreen Guide to Thermal Insulation provides detailed guidance on insulation products and practices, including recommendations on what insulation to use and what to avoid. It's a treasure trove of information for architects and designers, builders, and anyone who is actively considering the impact of insulation on the quality of your... Read more

With the increasing need to support design with techncial expertise, I am curious to hear how others are meeting this challenge.  Do you build energy models in-house?  Do you have a team of experts whose sole responsibility is to support design teams with tasks such as energy modeling and LCA, or is that expertise distributed throughout the... Read more

Hi Green Gurus (esp. Sustainable MEP leaders...)

I'm looking for suggestions of contacts for MEP consultants, especially in the Chicagoland region, ideally with sustainability highly integrated into the work, specialization in geothermal systems, and indoor agriculture. (doesn't necessarily have to be all-in-one)

For context, we... Read more

Welcome to the quiz portion of The Great Eight: High-Impact Material Choices for Green Building.

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


1. Specify green building materials in product categories that truly make a difference for human health, the environment, or both.
2. Conduct a... Read more

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

The BuildingGreen/GreenStep exam prep materials are... Read more

There are a number of clear finish options available, from natural oils and low-toxicity products primarily used on residential woodwork through factory-applied finishes where specific aesthetics and/or added durability are required (such as those used on cabinetry or commercial architectural millwork). Many of these have very high VOC levels,... Read more