The requirement states that “Any automatic control device required … shall either be manual on or shall be controlled to automatically turn the lighting on to not more than 50% power”

We have a project with 3 lobbies located in basement parking.

The CIR 10426 (http://www.usgbc.org/content/10426) creates the impression that in locations where the local code does not require vestibules they are not mandatory, if a "a narrative explaining how

If someone could please confirm whether the following guidance from the LEED v4 Reference Guide is still applicable to LEED v4.1 projects: "Default recycled content for steel products where no

I came across a 2019 press release by Global GreenTag advising that the Global GreenTag PhD, Materials Transparency Certification Program is as of 2019 recognised by LEED and USGBC. 

Hi, I am quite confused as to how to calculate compliance for Option 2 Metered Water Use. We have the consumption data for 12 months for a building however the calculator is only for Option 1.

Our project is an office building undergoing major renovation. The building will remain operational while the renovation is ongoing.

As we are outside of the USA, ASHRAE 90.1:2010 is a new requirement that came with v4 and our designers have no experience in interpreting and applying the mandatory requirements.

Hi, on a recent project we were requested to provide evidence that 5 buildings built within the last three years did not have carbon monoxide sensors installed in the basement car parks in order to

Hi, There are several spaces in a project I'm working on that have been designed with an occupancy sensor without an override switch but each individual work station does have controllable (on/off