The 2015 International Energy Conservation Code (IECC) includes changes that address more climate zones.
One of these new zones is targeted to tropical areas including Hawaii, Guam, Puerto Rico, American Samoa, U.S. Virgin Islands, and islands between the Tropic of Cancer and the Tropic of Capricorn. Advocates recently testified in favor of adopting the new code at a public hearing on Hawaii’s State Energy Conservation Code.
A recent report funded by the Department of Energy found that adoption of the 2015 IECC would lead to about 21% energy cost savings for residential buildings, including single-family houses, townhouses, and apartment buildings of three stories or less. Tropic-specific additions to the 2015 code include requirements for insulation, ventilation, ceiling fans, and air sealing.
There is also an optional compliance path for semi-conditioned residential buildings that match criteria defined in the new code.
Related Stories
Codes and Standards | Nov 26, 2019
Updated ASHRAE standards focused on ventilation design, air quality in residential applications
Standard 62.1 and 62.2 updates provide new tables of ventilation rates per unit area.
Codes and Standards | Nov 25, 2019
Real estate professionals say coworking is not a flash in the pan
More than 60% say coworking space is in their portfolios.
Codes and Standards | Nov 22, 2019
Utility’s proposal threatens California’s rooftop solar mandate
Would allow customers to use solar farms instead of installing their own PVs.
Codes and Standards | Nov 21, 2019
Number of LEED commercial building projects surpasses 100,000
More than 2.6 million sf of space being certified each day.
Codes and Standards | Nov 19, 2019
Most U.S. voters support licensing standards for architects
NCARB survey shows strong support for architecture as a licensed profession.
Codes and Standards | Nov 18, 2019
Cambridge, Mass., teams up with utility on energy retrofit program
Buildings large than 25,000 sf targeted in initiative to further carbon neutrality goal.
Codes and Standards | Nov 14, 2019
Resistance to Toronto’s ‘smart city’ reveals pitfalls of such ambitious projects
Concerns over data privacy, governance, feasibility prompt criticism.
Codes and Standards | Nov 13, 2019
Heat pumps, strategic energy management could be next major focuses for efficiency
After lighting, efficiency experts look to new opportunities to boost energy efficiency.
Codes and Standards | Nov 12, 2019
National Infrastructure Performance Council to address ‘national security crisis’
Coalition wants to double annual level of infrastructure investment.
Codes and Standards | Nov 11, 2019
Major cities are adopting new building performance standards
Initiatives can include multiple standards.
