Hi,
We are designing a building for tropical climate condition and thinking of having natural ventilation and mechanical ventilation only. i.e. no mechanical or natural condition systems...

Dear forum,

We are working with an industrial plant that is seeking to obtain the LEED Certification. Since most of the energy consumption comes from process loads, we are using an...

I have an attic that is heated only with a Gas Furnace. However, there is an exhaust fan that helps maintain the space at or below 84 degrees and also runs to ventilate the space on the rare...

Another question regarding the baseline fan power calculation in the Tables 1.4 Excel spreadsheet:

Does the calculation account for the possibility of a Return Fan in the proposed system?...

Hi,

I have a doubt when modeling proposed and baseline building.

If I have some adjacent buildings to the proposed model, should I include their geometry in the proposed/baseline...

Hi!

how can I prove that an environment is naturally conditioning?

I believe this is not only proven by percentage of openings, correct?

For example, how to prove this in a...

We are putting together a baseline of a high rise residential building. In Appendix G, it states that we need to use 19 w/gpm. However, in the commentary, it states that this is based off of 60...

Per 90.1-2007 section 6.4.3.9 "Ventilation Controls for High-Occupancy Areas" systems are required to have DCV given certain criteria. Appendix G seems to not mention anything about ever...

Hello,
we are working on a project LEED C&S in 2009 of approximately 100,000 square feet.
The property doesn't want to implement the energy modeling due to economic issues.
...

Can someone help me with exception "b" of mandatory section 6.4.3.9 in 90.1.
What is meant by the following:

b. multiple zone systems without DDC of individual zones communicating...