Hi! I hope that others who were at Islandwood found it as fulfilling as I did. (Janice and I spent the weekend exploring the island on bicycles--we're just getting on the ferry to Seattle now. It was a great little vacation!)

Let's use this thread to share notes and documents from the Summit. Please post your highlights here, or send... Read more

As we begin to look into Scope 3 emissions reduction strategies, it's important to understand ways to reduce tranportation emissions to project sites. Is anyone aware of best practices or programs for contractor carpooling to jobsites? I know many of my colleagues travel to work together in one vehicle because of parking limitations, however,... Read more

Checking in to see if any of you have had good job site success with plastic water bottle recycling. Due to the LBC recycling requirements, we have to source separate onsite, and we're trying to has a separate plastics bin. For the most part, water bottles is going to be on of our biggest contributors.

Does anyone have a "healthy material" exterior bleacher benchtop (beyond natural wood or metal) recommendation for a public high school track and field? 

How do we discern between fiberglass, recycled plastic or HPDE?  Is there a rule of thumb on how to advocate for specifying a "not as bad" material? 

The project is in a coastal... Read more

The results from the "CogFx" study are compelling, showing that people in environments with low VOCs and low ambient CO2 levels score higher on tests of cognitive function.  Specifically, they show that providing 40cfm of outdoor air per (actual live) occupant results in significantly higher scores than even the "Enhanced Ventilation" scheme... Read more

General FAQs

Orders, Memberships and Billing

Technical... Read more

I wanted to let you all know about this Built Environment Plus Roundtable coming up on Thursday afternoon 3:00 est. We will be having a discussion around the IRA and how to implement the incentives on projects and help our clients understnad what it means for them. This is an informal setting where people can ask questions or share experiences... Read more

Quiz body text here

Hello, Green Gurus!
It was lovely to see some familiar faces (and names) in this afternoon's webinar about Low Carbon Specs. A little personal info, but I have just recently returned from maternity leave, and plugging back in to this network of passionate sustainability professionals is one of the things that actually made me look forward... 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. :(

Hello all,

I need future weather files for a project. We are looking at three years, 2050, 2075, and 2095 using two climate change scenarios, low emissions, and high emissions. I have seen ARUP's Weathershift site that uses RCP 8.5 and RCP 4.5. Are we assuming that 2.6 is not achievable? I would have used this as a low emissions scenario... Read more

Welcome to the quiz portion of Measuring Energy Use in Buildings: Do Our Metrics Really Add Up?.

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


1. Explain the differences between site energy, source energy, and energy cost.
2. Summarize three ways in which source energy can... 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

I'm working with a project team that is looking into bird control options to prevent nesting/roosting/pooping on the scrim that is designed to scrim their building's facade.  They are looking at electrified tape, repellents, laser systems, etc -- Options that don't dramatically impact the building design.  The products they're looking at claim... Read more