Wednesday, February 13th, 2008
Intent:
Reduce ozone depletion potential (ODP) and global warming potential (GWP)
Support early compliance with EPA Montreal Protocol
Implmentation:
Quick Information:
refrigerant comparison
CFC (high)
HCFC (medium)
HFC (low)
efficiency of HFC is less than HCFC
OPTION 1: do not use ANY refrigerants
OPTION 2: use refrigerants and HVAC that minimizes or eliminates emission of compounds that cause ozone depletion & ...
Posted in Energy and Atmosphere | 8 Comments »
Tuesday, February 12th, 2008
Intent:
Reduce ozone depletion.
Implementation:
New Building: Zero use of CFC-based refrigerants in HVAC systems
Existing Building: Consider replacement or "phase-out" program for HVAC units and fire systems with CFCs.
CFC production stopped in 1995 and was phased out 5 years after that.
Existing mechanical systems connected to existing chilled water systems have to be CFC-free.
notes:
ODP: ...
Posted in Energy and Atmosphere, Prerequisites | 10 Comments »
Wednesday, February 6th, 2008
Intent: Reduce IAQ problems associated with Construction/Renovation process Help to sustain comfort and well-being of construction workers and building occupantsImplementation: Develop and implement an Indoor Air Quality (IAQ) Management Plan for pre-occupancy phaseOption 1: FLUSH-OUT after construction but before occupancy 14,000 cf of O/A (outside air) per sf of floor area maintain 60 degrees < 60% relative ...
Posted in Indoor Environmental Air Quality | 5 Comments »
Sunday, January 20th, 2008
Tidbit: this credit happens to be one of the most expensive to implement. Thusly there are many government incentives / tax breaks to help.Intention: Rehabilitate damaged sites (environmentally contaminated sites) Reduce pressure on undeveloped landImplementation: Rebuild on a contaminated site as documented by ASTM E1903-07 or local codes. Brownfield definition by the EPA. CERCLA (Comprehensive ...
Posted in Sustainable Sites | 2 Comments »
Sunday, January 20th, 2008
This is a prerequisite credit. Prerequisite credits are mandatory credits that MUST be accomplished for a building to become LEED certified. There are 7 overall prerequisites in the New Construction version 2.2 LEED-AP reference guide which is the exam version this study guide covers. Construction Activity Pollution Prevention is the ...
Posted in Prerequisites, Sustainable Sites | 19 Comments »
