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Andrew Burns and John Downie, The Burns Companies, presented to the REBA Massachusetts chapter on the challenges of Building Green and the Building Energy Codes inherent in states. July 11, 2011
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Building Green Building Energy Codes
July 12, 2011
Andy Burns, LEED-AP, PresidentJohn Downie, AIA, LEED-AP,
Consulting Architect
Agenda
• What is ‘green’ or ‘sustainable’?• Building Energy Codes• Energy Consumption Comparisons• Case in Point: Silver LEED-EB v2.0• Beyond Code• Challenges to ‘sustainable’ standards
What is Green or Sustainable?
“Green” Building is:
A. Kermit the Frog’s House?B. Any building painted with Benjamin Moore #2034-40
Cedar Green ?C. Any ivy covered building at Harvard??D. Also known as Green Construction or Sustainable
Building, Green Building refers to building processes that are environmentally responsible and resource-efficient throughout a building's life-cycle: from site selection to design, construction, operation, maintenance, renovation, and demolition.
✔
“Sustainable architecture seeks to minimize the negative environmental impact of buildings by enhancing efficiency and
moderation in the use of materials, energy, and development space.”
-Wikipedia
What is Green or Sustainable?
• Buildings account for 40% of U.S. energy use*
*Source: International Energy Agency, www.iea.org
Energy Codes Today
• Building codes start as life safety/construction
• Energy codes in U.S. have been standardized through IECC
• Massachusetts has adopted IECC• MA jurisdictions have the option of
using the ‘stretch’ code• Stretch code dictates 35-40% reduction
in building energy usage over base code.
Actual Energy Consumption Comparison• For single family houses in Denmark• Relative to energy efficiency requirements in
building codes
*Source: International Energy Agency, www.iea.org
Beyond Code: References
• LEED www.usgbc.org • Passive House www.passivehouse.us • Net-Zero http://zeb.buildinggreen.com/
Beyond Code - LEED
• USGBC LEED Program:– Not-for-profit trade organization– The largest ‘sustainable’ rating
program in the U.S.– Energy savings debatable– Rates issues beyond energy• 6 criteria for measurement
Case in Point: LEED-EB v2.0 Silver Certification
• Challenges:– Existing building vs. new– Occupant and Owner Green
awareness– Tight budget– High traffic area, needed to
minimize disruption– Needed to identify areas of
opportunity
• Required a team approach• Conducted a retro-
commissioning energy study
Case Results• Achieved ENERGY STAR score of 72• NYSERDA (New York State Energy Research and Development Authority)
provided 50% cost sharing• Operational gains:
– Reduced potable water by 10% over EPA 1992 standards– Implemented extensive ozone protection through active management of refrigerants– Powered by Green-e energy for electricity– Diverted over 70% of building waste from landfill– 85% efficiency (MERV 14) air filters to provide proper indoor air quality
• Office efficiencies:– Sustainable purchasing of office materials, green cleaning paper products, and light
bulbs– 50% of office spaces have lighting controllability– High performance green cleaning featuring Green Seal certified cleaning products,
equipment and pest management • Delivered Green Education to Occupants:
– Shared green building exterior management practices and preventive maintenance program
• Noted for exemplary performance in public transportation, development density, and occupant recycling
Beyond Code: Passive House
• U.S. Energy Information Administration shows buildings are responsible for: – 48% of greenhouse gas emissions annually– 76% of all electricity generated by U.S.
power plants goes to supply the Building Sector
Principles for a Passive House
Beyond Code - Zero-Net
• By 2016, UK set the goal that all new buildings will have Zero-Net carbon footprint
“…a popular term to describe a buildings use with zero net energy consumption and zero
carbon emissions annually.” - Wikipedia
CREATE USE
Challenges
• Challenges to ‘sustainable’ building standards beyond the code:– Potential suits against USGBC– “Shadow Government” – Lack of data on actual results– Construction issues
Questions?Thank you!
Contacts:
Andy [email protected]
http://www.theburnscompanies.com
Linkedin:http://www.linkedin.com/in/theburnsco
John [email protected]
http://www.theburnscompanies.com
Linkedin:http://www.linkedin.com/in/jovidownie