My question is. The Guide says choose Case 1 Sites with Existing Imperviousness 50%or less or Case 2 Sites with Existing Imperviousness greater than 50%.

I am modeling a building that directs all building exhaust through an energy recovery ventilator, including bathroom exhaust.

Talking about a VRF HVAC system. Is it a mandatory requirement that the VRF condenser and evaporative units must be ARI Certified, according with the Standard 90.1-2007?

Hello there What does this mean : Ensure that no credit is taken in the proposed case for lighting reduction on tradable surfaces" Does this mean if the LPD for facade lighting for a designed b

Does anyone know what headroom height are based on when ASHRAE design the LPD for space-by-space method (Table 9.6.1) ?

Has anyone of experience in including a fitness center m to an office building. One of the tenants of our Project will be a fittness center. All fit outs will be done by the tenants.

This is actually a LEED for Healthcare question dealing with exterior applied products. In several roofing sections we ask for "non-fibrated aluminum paint".

There are four buildings that are leased by the State and one of the buildings currently has 25% if it as a Data Center.

In the floor plan, is it required to document the recycling areas as paper, corrugated cardboard, glass, plastics and metals specifically or just designating as recycled areas in floor plan will be

In the LEED Online form for option 1 section 1.4: Mechanical System Design Criteria, there is a place for you to enter the total space loads for heating and cooling and another entry that asks for