Ground- and water-source heat pumps move refrigerant or water through the ground or a body of water for use as a heat source (for indoor heating) or heat sink (for indoor cooling).

BuildingGreen-Approved Heat Pumps

BuildingGreen approves:

Hello!

I'm curious what other firms like to use to run site-specific sun path and wind path analysises that is relatively intuitive to use and generates good graphics. We have used the climate consultant software for wind roses which is free and simple. We've also used sefaira but we're hoping to crowd source more resources. We purchased... Read more

Hello all, 

Wondering if anyone has experience with lead limits in electrical cable and wiring? 

LEED for Healthcare allows a limit of 300 ppm of lead in electrical wire and cabling - my search for compliant products has been all dead ends. (MRc PBT Source Reduction - lead, cadmium, and copper)

Acceptable regulations for... Read more

How interested are you in a Sustainable MEP Leaders Summit this summer? 

Please respond to this poll ASAP, as we need to gauge interest before we finalize any details.

When: Wed. July 26 at noon to Thurs. July 27 at 1:30. 
Where: At a conference facility near Boston
Cost: $1200, which includes lodging, meals, and... Read more

Healthy Building Network (HBN) is hiring and they just posted a new career opportunity for "Director of Product Tranformation" https://healthybuilding.net/careers/14

"Healthy Building Network (HBN) is seeking an experienced leader who wants to help transform the building materials market. This role will inspire product innovation by... Read more

Hey, all. Two questions:

-How do we communicate to you LEED User content that needs to be pulled through to BIT-user pages? Are you all going to assess each BP page for potential articles/topics that will be linked?

-Regarding the forums- is there a way to notify program staff when a forum has an unanswered question? Hoping to... Read more

Welcome to the quiz portion of Essential Playbook to Managing LEED Construction.

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


1.  Understand the transition from LEED BD+C or ID+C v4 to LEED v4.1, especially in regard to material-related credits.

2. Discern how to properly... Read more

Just an FYI that BG's web team is planning on attending your meeting at 1:00 EDT. We will need information on how to join since the info in the invite didn't work last time.

See you all then.

We are pursuing sustainability goals (and documentation of those goals) outside of any certification/rating system for a current project.  However, we have set up a criteria list of goals by following strategies/credits from many of those systems (LEED v4 EPDs, SITES v2 threatened tree species, WELL v2 mindful eating, etc.).  This approach is... Read more

Hello Everyone,

Here are some of the Show & Tell presentations from the 2019 SDL Winter Summit, enjoy!!

Best,

RoseAnn

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

The site license permits the purchaser to share the PDF Guide file within their company/organization and post it on their intranet. Site licenses do not include the CEU quiz.​ If multiple individuals in your organization would like to access the CEU accredited quiz, please purchase individual copies.

The sheer number of... Read more

Friends,

We put a lot of effort into air tightness design, detailing, and construction administration, often including 6-sided mockup and parital or whole-building blower-door testing.  For commercial buildings, these tests measure air leakage in cfm/sf at 1.57 psf (75pa).  

I came across this research paper several years ago, but... Read more

Hello! I just joined the SAL group and am thrilled to be a part of this amazing network! I am an architect and an educator and now run my own sustainable consulting practice in the Boston area. Having previously led the sustainability efforts at several of Boston’s large architecture and design firms, I made the exciting (and scary) leap in... Read more

Hello everyone - 

I'm writing today to let you all know that as of this month, I am retiring from SERA, and that I'm going to be beginning a new journey as a consultant/volunteer!

I'm going to continue dedicating my time to policy and advocacy work (focused on decarbonizing the built environment) but now I'll be doing it as a free... Read more

Board insulation has good thermal performance ranging from about R-4 to R-8 and is used as an integral part of a building envelope’s continuous insulation system.

Because board insulation is used on the building exterior, it is not always subject to the same material health and emissions requirements as batt insulation used inside the... Read more

Hi folks,

Oregon’s ZERO Coalition is looking for responses to the question below on local policy for electrification, and I thought tapping this group would be helpful.

Are you aware of any local governments outside of Oregon that are promoting or enforcing electrification?