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

We have a client who is asking us to design a roughly 10 ksf Wellness Center for PHIUS 2021 certification.  The program includes several high density assembly type spaces - roughly 300 person peak occupant load for the building.  The Criteria Calculator that the architect showed us puts the building peak cooling load at 4 BTUH/sf (3000 sf/ton... Read more

Has anyone used a commercial heat pump water heater for a large protect?  I have found a few manufacturers for this technology, but want to make sure this is a viable and cost approach to electrical eliminate gas on a path to all electric.

A colleague just pointed out an article about M-Fire. Its a factory applied fire inhibitor for wood construction. It's GreenGuard Gold but I can't find any real information. Have any of you heard of this or have any idea what it actually is? https://www.bisnow.com/national/news/construction-development/this-new-tech-will-stop-fires-before-they... Read more

HI Green Gurus. Great news for those who signed the petition to WHO last summer, and even those who didn't. The World Health Organization’s (WHO) released on March 1, 2021 a Roadmap to improve and ensure good indoor ventilation in the context of COVID-19. This document provides practical advice on how to mitigate COVID-19 through airborne... Read more

First, there was Energy Use reductions

Then there was embodied carbon

Soon it will be refrigerant use/leakage calculations

…and much more

As coordinators and leaders of project teams, what does this look like for the practicing architect and our collaborators?

I have no idea. BUT I’m guessing someone is... Read more

Hello Everyone,

Here is the information and invitation to complete the SCL Demographics Survey! If you have multiple company colleagues on this forum (you can check in the group list here click "Group members" tab), please coordinate to have only one of you submit survey responses.

If you would you like to gather your answers... 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.

Hello Green Gurus,

Here's another Peer Networks Webinar for September, Prospects for Sustainable Buildings in Congress. We hope you will join us!

Reminder: This webinar is for Peer Networks members only.

I'm waiting to confirm with the presenters whether this will be recorded. Watch this space for updates!

Register... Read more

Hi all - I heard from sevearl of you at Greenbuild that you have learned from and perhaps even shared the Path To Zero Carbon series internally at your firms and externally. As I mentioned at Greenbuild, we are attempting to hand off the series to a non-profit, with the idea that groups of experts (including many of you, I hope!) will provide... Read more

Hi all,

I've been working on a LEED project in California for months and our energy modeler wants to use the LI 10480 Title 24 2019 pipeline to demonstrate compliance under LEEDv4. Only problem is, I've never done it that way before, and our modeler and I are consistently speaking in different languages. Anyone done a project under this... Read more

Welcome to the quiz portion of Circular Economy at Scale: Six International Case Studies.

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


1. Define circular economy and explain its importance within the built environment.
2. Describe how to leverage long-term value over first... Read more

On LEEDuser we divide checklists into multiple project phases. Specifically:

How many of these phases are relevant for BIT best practices?

Note that we also... Read more

Hello Sustainable Construction Leaders,

In years past, we've hosted an SCL Summit the day before Greenbuild. We'd like to get back to that model, but we also know that there are many other demands on your time. Before we get too far into planning we're asking you to please fill out this quick survey to let us know if you could/would... 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