I’m planning to approach this credit through the prescriptive path. My building has windows on all four facades. It also has a central atrium that measures 49.20ft x 49.20ft (2.420sf).

According to ASHRAE 90.1, power allowance for lighting in mall areas is 18 W/m2 (table 9.6.1).

1. I would like to confirm one thing regarding Lighting Power Density Reduction calculations. What is Gross Lighted Floor area that should be used in Building Area Method calculations?

We have over 6,000 lamps in our building, and all but 26 have readily available low-mercury/ high efficiency counter parts. The 26 in question are "mini candelabras" ....

We're working on a LEED Volume prototype for our campus and received this feedback on MRc4: Only up to 10% of the floor area under separate control may be excluded from the calculations, so if resi

This may seem like a simple question, but do recessed foot grilles or walk-off matts count as a flooring system?

Hello! We are having a hard time justifying the 80% retention of TSS.

What would be the best way for a building to document their audit if they contract for single stream waste/recycling?

I'm trying to update the LEED daylight spreadsheet but it seems to be protected.

I AM BEGINEER IN THIS FIELD.