SDLers – For one of our projects we are working with local tribes to procure timber. We would also like to get FSC certification, but haven’t found significant overlap between these two criteria in the Pacific Northwest. There appear to be two certification entities in our area: Northwest Natural Resource Group and Trout Mountain Forestry.  I’m... Read more

Wood was the first material used in window frame and sash construction, and it remains popular for homes with its warm feel and relatively high energy efficiency.

BuildingGreen-Approved Windows

Wood windows must achieve an NFRC-certified unit U-factor of 0.22 or lower. Manufacturers also must demonstrate that their highest-... Read more

For consideration in determining CM "Greenness", are we leaders if we wait for city ordinances?  can we collectively agree/adopt a standard?

and for those of you in this market, how is this being received and implemented?

https://www.portlandoregon.gov/bps/article/701085

Multnomah County, City of Portland commit to reducing... Read more

As you might well remember, one of the Working Groups that came out of the SummitPalooza earlier this year was for MEP Embodied Carbon & Refrigerants.  That Working Group began working with the Carbon Leadership Forum and is now excited to announce the rollout of the MEP 2040 Challenge: “All systems engineers shall advocate for and achieve... Read more

Hey everyone, 

With the coming In-Use Off-Road Diesel-Fueled Fleets Regulation | California Air Resources Board we have been doing some research on availability of R-99 fuel prior to the January 1 start date. One thing we aren't finding in the research is an estimate of cost impacts. Has anyone started rolling out R-99 on their sites yet... Read more

Green gurus!

We're getting some interest from clients abroad on two specific materials which we don't have experience with here in the U.S.:

1) Cross Laminated Timber (CLT)

and/or 

2) CarbonCure concrete

Anyone willing to share lessons learned on these material either here in the forum or offline? Or point me... Read more

Dear Green Gurus: I'm so sorry to have missed seeing many of you at AIA last week. I heard the BG and COTE events were the highlights of the week! Congrats.

I'm sure by now you've heard of the dreadful Supreme Court decision about the EPA. I thought I'd share a helpful, if not sobering, perspective in an Op-Ed today in the Washington... Read more

Dear Green Gurus,

I both regret and am excited to tell you that I am leaving this group to pursue my next adventure.  I'm stepping down as Kirksey's Director of Sustainability, moving to Tucson, and starting my own business.  My business plan is to buy existing buildings, renovate them to net zero, and then sell or rent them.

I... Read more

Hi folks,

I'm looking into lower-carbon pipe options for HVAC and plumbing. The MEP 2040 has slides from a Buro Happold study in 2020 showing PEX to be much lower in embodied carbon than copper, which is unsurprising. CPVC is also a lower-carbon option.

But PVC has its issues and neither PVC nor PEX are recyclable (especially if... Read more

Hello Green Gurus!

Here are the details for the upcoming Peer Networks webinar, The Beneficial Intersection of Energy, Resilience and Health.
REGISTER HERE! Hope to see you there!

The Beneficial Intersection of Energy, Resilience and Health
April 30th, 2020
2pm - 3pm ET (11am - Noon PT)

How can three... Read more

Charlotte has been the lead customer service representative at BuildingGreen for 25 years. 

Having been involved in the nuts and bolts of customer service and accounting throughout various phases of the company’s development, Charlotte’s historical knowledge is immensely helpful to BuildingGreen’s staff and customers. Customers know her... Read more

Welcome to the quiz portion of Better Window Decisions: Mastering the Performance and Cost Options.

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


1. Understand the energy metrics that inform how windows affect energy loads
2. Describe ways to avoid air leakage and condensation... Read more

To piggyback off Nathan's introduction where he mentions construction waste management, who is doing anything innovative or different in managing construction waste?  Construction waste has not historically been a passion of mine, but now working in sustainability and construction, I feel like it has to be by default.  

We have a... Read more

Hi all,

We have a newly constructed, core/shell project having some hot water issues in the core restrooms.

There is a 0.35 Toto lav installed throughout. The hot water heaters are adjacent on each floor, located in the janitor closets. We did the math, and there could be a gallon of water standing and cooling in the pipe between... Read more

Hey SDL,

I'm curious if anybody out there has developed specification language requiring a certain level of airtightness (as assessed via one or a series of blower door tests) for a commercial project when it is not going for a Passive House certification and a blower door test is not required by code--basically, something in the... Read more

Quiz body

Hi Gurus,

As some of you may remember, my spouse, Moshe Cohen did a short negotiation mini-training at SDL some years ago - but there's many of you who weren't there - so this is for you!

He will be doing a training in two parts on Nov 17 and 24th from 9-12 EST. He's the BEST (even objectively!!) and honestly, if you want to... Read more

Wellness is key to sustainable design. As more and more clients understand the value of healthy built environments, designers need to understand the various wellness rating systems available, and which would meet the project's goals and needs.

WELL and Fitwel have emerged as the two leading wellness rating systems,... Read more

OSB subflooring typically contains formaldehyde, and wood may not be sustainably sourced.

BuildingGreen-Approved Subflooring

Products approved by BuildingGreen contain no added formaldehyde or are available with FSC-certified content.

Magnesium oxide panels, which are particularly insect and moisture resistant, are also... Read more