Hi Gurus,

LMN is embarking on a 17-part series to explore a more comprehensive carbon metric via summaries of various topics with lots of link. This dovetails with many other efforts in the industry and will reference all the best stuff that we are aware of...such as MEP 2040, SE 2050, CLF stuff, Epic tool, CARE tool, Arch 2030... Read more

Welcome to the quiz portion of Solar Thermal Hot Water, Heating, and Cooling.

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


1. Explain active and passive; direct and indirect; and low-, medium-, and high-temperature solar thermal systems.
2. Distinguish between the three most... Read more

Hello Colleagues,

You all know our industry’s progress over the past decade related to the impact of materials. We have come a long way. Today we have over 110 firms that have signed onto the A&D Materials Pledge, pledging to a holistic approach to materials considering: Human Health, Climate Health, Ecosystem Health, Social Health... Read more

We had so much fun at our Contractor coffee talk that I reached out to our MEP friends to see if they would set up something similar.  And they have agreed to host a talk on Thursday December 2, at 1-2pm EST.  They will talk about decarbonizing buildings, on a schedule that keeps us under the 1.5° C limit and will also address strategies for... Read more

Older buildings—especially those from the 1950s, ’60s, and ’70s—need our help. Many leave something to be desired in terms of aesthetics and comfort. But the truth is that they are part of the urban and suburban fabric now, and they aren’t going anywhere. As tempting as it might seem to tear them all down and replace them with high-performance... Read more

Hello everyone,

Here's a reminder that our call for this month will be taking place next Tuesday, November 12th at 2:00pm EST.

Please feel free to join us!

Join Zoom Meeting:

https://zoom.us/j/248664490

One tap mobile
+16699006833,,248664490# US (San Jose)
+19292056099,,248664490# US (New York)... Read more

All, today is the day I had committed to sending out the DRAFT request to equipment manufacturers of what is needed for full electrification.  I apologize that I didn't have time or focus to get my thoughts together till now (I had intended to share this with Chris and others prior to sending to the full group, but just didn't get my thoughts... Read more

A couple questions for this group. I know we're having a Green Commons meeting on this next week. But can anyone comment on the following questions?

-Have you or your firm split the benefit of the 179D with a client? Is this typical?

-Is prevailing wage a requirement for all 179D benefit, or does it follow the same lines as... Read more

The 2018 ENR Green Building Survey is due March 16th.  I'm sure you all know the metric they use to evaluate your ranking is solely the revenue from projects pursuing a green building certification in the previous calendar year.  Personally, I think this totally bogus.  How "green" a contractor is may correlate with how much revenue they have... Read more

Does anyone know about temporary flushout equipment that could be used to augment a building's systems to get additional CFM of OA during construction?  For our non-laboratory type projects the flushout period ends up being too long, especially in either humid summers or frigid winters (Pennsylvania).

Hoping that some of you on either... Read more

Just highlighting a tool from Circular Ecology (the group that brings you the Inventory of Carbon and Energy data) for measuring Scope 1 and 2

https://circularecology.com/organisational-carbon-footprint-tool.html

Hi Gang, 

We are looking to implement the contractor commitment and are running into COVID-19 protocol barriers when looking at the Jobsite Wellness category specific to the soap as well as the food storage/eating areas on site. Anyone else run into this issue? 

-Kena 

Was anyone else surprised to see ASHRAE 228-2023 using eGRID Subregions for both the Regional Electricity Source Energy Conversion Factor and Regional Electricity Greenhouse Gas Emission Factors? In the past I have used eGRID sub-regions but also State and local utility conversion factors depending on what energy or operational carbon story I... Read more

Metal roofs can also provide high solar reflectance, minimizing a building’s contribution to the urban heat island effect. 

BuildingGreen-approved

Materials and finishes recognized by Energy Star maintain solar reflectance levels after three years of use of 50% for low-slope and 15% for steep-slope. Some unpainted metals and many... Read more

Hi folks,

We're currently scoping out a BuildingGreen report on how the global market for recycled/recyclable materials has changed over the years, and what that means for waste management practices in construction, and for the availability of recycled content materials. 

This ties into the goal from the SCL Summit about LEED... Read more

I'm exploring the use of phase change material for a project. Specifically, looking at the BioPCM/ENRG Blanket product. I see on their website that ZGF used it at University of Washington. I'd love to hear any feedback from folks who have used it, and more specifically how your energy model and MEP engineer accounted for it. Thanks!! https://... Read more

In trying to help a client write a case study on avoided carbon by using slag and flyash, I am having trouble finding a one for one equivalency that can be verified.

I have found for one pound of flyash, one pound of carbon is saved - but I can't verify that.

Appreciate the feedback!