What is the status of the roof insulation market regarding non-halogen containing polyiso boards? I know GAF and Atlas still have them. I thought JM had them as well, but seems to have taken them off the menu. Are there performance issues?

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

Sheathing should be designed for durability, but some sheathing materials can be toxic or may contribute to moisture issues inside the building envelope.

BuildingGreen-Approved Sheathing

Sheathing approved by BuildingGreen contains recycled content, rapidly renewable materials, or otherwise provides exceptional performance, such... Read more

I can see from the threads that there are at least a few Passive House advocates in this group - I'm wondering about the PHIUS training and certification. Can any who have done it offer an opinion? Is it valuable? Residentially focused? Would it apply to someone in a larger commercial practice? It's an investment of time and $, so I really want... Read more

Hello All,

I'm supporting a project that is pursuing Green Globes and trying to get familiar with its content.  I'm hoping someone might have experience with the program and be able to provide direction toward products that have an OESR.  From what I've read, this is a material ingredient disclosure type report, based on ASTM std. E3182-... Read more

Hi everyone,

During the "Integrating Social Sustainability" session at the Winter Summit, an idea was hatched to form a working group dedicated to understanding how equity services can benefit a client's pro forma. Our first step (of course) is to identify the range of services captured under "equity services" and we'd love to speak with... Read more

Hi:

I encourage you to review and sign this letter. 

Notes from BDC follow:

Really appreciate the outpouring of support we've received so far on this letter! Various groups let us know that they would like additional time to review, so we've decided to extend the deadline from June 23 to Thursday, July 14 at 2pm.

As... Read more

There are a few spots left for the 2018 Summer Architecture + Design Sustainable Design Leaders Summit that is being held August 1-3 at the Garrison Institute in Garrison, NY (Easy train ride from NYC). If you have not already received an invitation, and you play a sustainability leader role - either formal or informal - in a mid-sized (>40... Read more

Just saying "Hello"  and happy to be joining the SDL peer network.  I am leading the effort at Integrus Architecture (Seattle and Spokane) to integrate performance and design and am looking forward to learning how others are accomplishing the same. 

Building materials emit massive amounts of carbon long before the lights go on.

In this course, BuildingGreen takes an analytical look at the greenhouse gases that are emitted in the process of constructing our buildings in the first place—the embodied carbon. The report focuses on how architects and designers, working with other key... Read more

I am diving back into Sefaira for the first time in a while, and the program still seems to be missing the ability to account for automatic daylight dimming in energy savings. Previously I had used an LPD reduction equivalent to emulate the savings automatic dimming would provide. Has anyone done a similar work-around? 

Dear SDL community,

I am supporting one of our health authorities in developing a business case for regenerating healthcare infrastructure as part of the indicative design for a new hospital and cancer centre. While I will be deepening this inquiry through the lens of a PhD over the next few (hopefully 4 or less!) years, I - and we - are... Read more

Welcome to the quiz portion of Designing Natural Ventilation.

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


1. Explain how natural venting and cooling potentials are realized in buildings.
2. Show how natural ventilation and passive cooling strategies can amount to increased... 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

The headlines are everywhere—from heat waves in Europe to wildfires in the Western U.S. to tropical cyclone flooding in Australia. In this age of climate change, just as there’s an urgent need to reduce carbon emissions and other greenhouse gasses, we also need to adapt and invest in resilience.

Increasingly, owners are asking for risk... Read more

A brief non-technical rant about OneClick LCA - from someone who is not actually USING the tool, but lobbying for its access.  Wondering if you all have better intel, or if it is just me.

We are working on a number of projects for which te teams are using OneClick LCA - for some cases it has a better international data set than others. ... Read more