Does anyone know if there is a list of approved Daylight Modeling Programs - software that LEED/GBCI will accept versus software that they will not accept?

The cleaning product being used is readily biodegradable and met credits towards LEED EBOM 2008. But we're going for certification under LEED EBOM 2009? Does the product still qualify?

Our project team shows a recent update (Aug 11, 2011) requiring the purchase of green power to account for the "building" not the tenant space.

Hi all! I'm working with at office building seeking LEED for CS certification. I have these big floor plans of 6383 divided by 3-4 tenants.

I see that we need to collect responses from a "representative" sample of building occupants making up at least 30% of the total occupants.

Our state energy code is based on ASHRAE 90.1-2004, which I believe does not require ci for exterior walls. ASHRAE 90.1-2007 requires R-3.8 ci for nonresidential walls.

Per addenda number 100000419, interior flat coatings voc allowance has drop down to 50 gr/lt, but what about interior aplications on ceiling? Is it still allowable to have 250 gr/l on flat paints

I have an existing bus garage which will be undergoing major renovations in order to become CNG compliant.

Does anybody know if electric fire pumps are exempted from energy efficiency requirements? That is, from ASHRAE 90.1 section 10.4 minimum efficiency requirements for electrical motors.

Would it be correct to use the "Warehouse, storage" gross square feet per occupant in the Reference Guide for mechanical spaces, storage rooms, loading areas and restrooms of a CS building?