After being pressured to scale back efficiency provisions in the 2018 International Energy Conservation Code (IECC), code officials largely held the line on efficiency gains made in recent versions, according to Lauren Urbanek, Senior Energy Policy Advocate, Energy & Transportation program with the Natural Resources Defense Council.
“The building code was under attack at every step of this year-long process,” Urbanek writes. “There were many proposals that would have significantly weakened the code and allowed more opportunities for energy waste, but nearly all were defeated.”
Urbanek noted just one efficiency gain in the new commercial code—one that pertains to water flow in showers. It sets the maximum flow rate of showerheads in commercial buildings at 2.0 gallons per minute, the level that has been specified by the EPA Water Sense program since 2010.
The IECC is used as a model code by more than 40 states. It is updated every three years.
A home built to the 2012 code uses about half of the energy as a standard home constructed in 1975, according to Urbanek.
Related Stories
Codes and Standards | May 8, 2018
Powerhouse coalition builds energy positive buildings
The goal: build buildings that provide more power than they cost to build, run, and demolish.
Codes and Standards | May 7, 2018
Plan advances in Los Angeles for Climate Emergency Mobilization Department
Would oversee efforts to reduce greenhouse gas emissions across the city.
Codes and Standards | May 3, 2018
Data collection, machine learning boost building efficiency
Sensors, software algorithms squeeze out waste.
Codes and Standards | May 2, 2018
Energy Department releases Updated EnergyPlus and OpenStudio building energy modeling tools
The tools can now accept input in epJSON format.
Codes and Standards | May 1, 2018
ASHRAE publishes new energy simulation-aided design standard
Requires building energy modeling during schematic design.
Codes and Standards | Apr 30, 2018
CALGreen projects pre-approved for streamlined LEED v4 requirements
Reduces need to run additional energy models.
Codes and Standards | Apr 26, 2018
New standard supports community resilience
ASTM International guidance supports cost-effective ways to withstand and recover from disasters.
Codes and Standards | Apr 25, 2018
Lessons learned from decades of Superfund cleanups guide contaminated land reuse
Sites repurposed for residential, commercial use, and solar energy generation.
Codes and Standards | Apr 24, 2018
Vibrant downtown core the key for urban multifamily development
Nighttime activity makes the difference.
Codes and Standards | Apr 19, 2018
ILFI launches new Zero Carbon Certification
Offers greater flexibility around project fuel types and offsetting renewables.
