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

Received answers from below questions from NIST Andy Persily

1. Is there a preferred bookends range of CO2 for both “optimal” energy and human performances?

Andy: No

2.Is the ASHRAE ventilation of 1000-1200 ppm average, probably not based on performance, suggesting current ventilation rate is sub-optimal with cognitive... Read more

Hello SCL,

We are getting back to our usual schedule of a pre-Greenbuild SCL Summit. We will be opening registration and announcing topics shortly. In the meantime, please pencil us into your calendar.

Date: September 25, 2023

Location: ZGF Architecture 600 14th St NW #800, Washington, DC 20005

Time: Soft start at... Read more

Hi Everyone!

Does anyone have a good resource for whole-building embodied carbon benchmarks broken down by building use and building category (structure, foundation, envelope, interior)?

I know of CLF’s 2017 Benchmark Study (great resource!) and the One-Click LCA study on European Buildings but are there any others?  I know many... Read more

Team,

As you all probably saw, Boston is discussing using both CEI (carbon emission intensity) and EUI as basic scope of work.  Maybe the more surprising thing is China announced a new building code next year to include carbon emission analysis as a basic scope of work for all buildings.   New buildings in 2022, among other things,... Read more

Green Gurus –

Clark Brockman brought to our attention an important and impactful opportunity to advance building decarbonization through the US Department of Energy’s proposed rulemaking around water heater efficiency, advancing adoption of heat pumps, while still providing exceptions (and efficiency targets) for electric or natural gas... Read more

Facilitating Engagement and Collaboration in Virtual Meetings (or, Avoiding a Goat Rodeo with Many Awkward Silences*)

If you weren't already sitting in virtual meetings every day... We all are now. So how do we facilitate an online meeting in which everyone is focused, engaged, heard, collaborating and problem-solving in an efficient,... Read more

Hello Green Gurus!

Here is a [LINK] to an updated version of the letter, including all the signatories we had as of last Friday - thank you all!

This message is really geared for your firm's social media/communications team, so if you aren’t that person, please share this message with them! With that said, all of you (whether your... Read more

Avoiding Toxic Chemicals in Commercial Building Projects

We’re excited to issue our special report, Spec This, Not That.

In updating the report in 2020, we engaged a respected toxicology and regulatory-compliance firm to review and assist in our revision of the entire publication. This edition reflects the latest science in... Read more

Anyone has experience with WELL pilot for restaurant? I have new client, restaurateur who's running farm to table concept restaurants in DC, VA, MD area, looking to fit out one of our core & shell.. Also, any other recognized programs or certifications specific to restaurants, I would appreciate any information and resources. Their spaces... Read more

Hi MEP Leaders,

We had a great conversation in our last monthly call about the function and purpose of this group, and what we can best do together. You can see detailed notes from that call here. And we'll soon be sending out a reminder about the October call (Tuesday, Oct 8, 2pm eastern).

One of the ideas from that conversation... Read more

Welcome to the quiz portion of Downscaled Climate Data: Where to Get It and How to Use It.

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


1.  Define “downscaled climate data” and understand where to find it and how to apply it in modeling to achieve greater environmental sustainability and... Read more

Sujatha Das of Haskell has put together a survey to help define the role of a Construction Company Sustainability Manager--I thought this is something many here might be willing to help with, and benefit from! 

Sujatha will share the results of the survey with those that participate assuming they provide the optional contact information... Read more

Ada Fran Maman

Does anyone have experience pursing SITES certification on an essentially a zero-lot line project?

We are required to achieve silver certification, but the project scope/phasing recently changed and the entire site/parking area was eliminated and we no longer have a green roof. It still appears we can meet silver certification as so few... Read more

BuildingGreen is the most trusted voice in sustainable design and architecture.

This ad-free, member-supported resource is here to guide designers in using high-performance strategies, and in selecting sustainable and healthy products.

If you haven't already, start by creating your unique user profile to get your log-in, and be... Read more

Welcome to the quiz portion of What Makes a Product Green?.

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


1. List and describe at least three attributes that address each of the following categories: "efficient use of materials"; "responsible sourcing"; "energy and water... Read more

Hi All - as Environmental, Social and Governance (ESG) becomes increasingly prevalent, I'm trying to learn more about what types of requests for ESG-related information folks are actually receiving and what types of trainings on ESG would be most helpful.  Drilling down a bit, I'm curious as to how ESG data points are moving down the supply... Read more