ASHRAE 90.1 states that existing buildings shall be modeled as is before renovations. Currently the building has all of the window openings boarded up. I'm thinking that the best scenario would...

We are dealing with project with underground garage, where adjacent spaces are technical rooms. Can we transfer the air from the garage to the technical rooms to ventilate them? Do we need to...

Hello,
I cannot find a definition for "non-structural products and materials" and I was wondering if someone could point me in the right direction. I assume that the definition includes...

Team, I am working on a Dormitory project in a campus housing kids from 1st grade to 8th grade. This project is located in the reservation. Looking through the Transportation Planning Handbook,...

I am working on an elementary school project with flush valve type water closets sized for young children. They are smaller than adult-sized water closets to make it easier for young children to...

Do I need to enter every single material used into the spreadsheet, or can I stop once I've reached the 10% or 20% threshold? Please tell me it's the latter!

Hello,
we are working on the project of a new commercial building where green roof is about 50 % of the whole roof.
There are some HVAC installations consisting of a mechanical part (...

Hi, our project is considering installing metering in our showers as a water saving improvement. But we cannot find any baseline in the LEED-online credit template metering showers.
Does...

The construction requirements for the bicycle storage seem to suggest centralized bicycle parking. Would individual ceiling-mounted hanging racks within apartment units comply with the credit...

The LEED NC for Retail 2009 rating system differs from the LEED NC 2009 rating system for IEQ C4 in that the retail system includes 6 options -- all those included in NC plus 'Furniture and...