For the expansion joints being used in a LEED project for schools v2009, do they have to meet the NRC requirement of 0.70? Currently our sub wants to use Seismic Colorseal, STC 52/OITC 38.

For a VAV (multiple-zone) system should the Design System Primary supply Airflow (Vpsd) sum up the total supply (and not the outdoor) air of each zone?

Does the 25ft referring to a straight line measurement? Or, it's following the building footprint?

Hi, I have demand control ventilation for every AHU.

The USGBC raised the following query in our project design stage review: "It is not clear that the shower usage reported accurately reflects the usage patterns of the project.

Hi! My project will have a lot of parking spaces that cant be shaded by trees or with open grid pavement.

The need to keep FTEs consistent through all credits is stressed though in the case of IEQp1 where for Mechanical Ventilation, table IEQp1-3, for code compliance based on square footage, the Pz (zo

If a project follows Option 1 - combined density, would the project be still eligible even if there are no residential units within the 1/4 radius?

Hi! We understand that all newly installed water fixtures must be WaterSense labeled.

We are planning to have Sedum Roofing, partly to recieve credit 6.1. I have read a lot about vegetated roofing also to pursue credit 6.2.