Exception a. of G3.1.1 states: "Use additional system type(s) for non predominant conditions (i.e. residential/nonresidential …)".

Can the pressure drop adjustment (e.g. for fully ducted return or for particulate filtration MERV) be applied to System 1?

The design model has an AHU that supplies air for some zones. During the winter season the AHU humidifies the air through an atomising humidifier.

We are deciding between the use of EN 15251 and the use of ASHRAE 62.1. Do you have experience in applying EN 13779–2007?

Does the storage of rain water contribute to achieve this prerequisite? The project will irrigate the outdoor vegetation only with rain water.

For a building I have to use the Building Area Method (ASHRAE 90.1-2007, 9.5.1) because some calculations were already developed through that method and now changing the method would be complicated

Hi, we have a project with large waiting rooms: are there specific values for "Reverberation time requirements", as there are not similar room type in the table 2 of reference guide? Thanks

Hi all, I need an information about the location of the bicycle rack. I’m working on a Core&shell shopping center, less than 300,000 square feet. The shopping center has more entrances at diff

Does water meter for fire emergency counts as additional meter for process water? In our project a tank is filled with water coming from municipal facility.

Is it possible to install a well specifically to collect groundwater for irrigation to meet the intent of the credit to reduce potable water use for irrigation?