Multifamily Building Guide

Guideline / September 6, 2017 / Building Innovation

A new Multifamily Guide offers an advanced standard that addresses the issues faced when applying building code to multifamily buildings. This single prescriptive standard delivers savings regardless of whether the project is subject to the residential or commercial versions of the International Energy Conservation Code (IECC). Modeling shows the advanced measures described in the guide result in savings of 15-25% over the 2015 IECC. In all, 13 core measures and six additional efficiency packages are presented to help design practitioners and owners improve energy performance in multifamily new construction projects.
For utility efficiency program administrators, the package provides measures that are modeled for verified energy savings estimates and incremental cost analysis.

Multifamily buildings offer a largely untapped opportunity for improving energy efficiency. Despite tremendous potential for savings, the multifamily market is has been challenging to advance due to complexities in market structure and split incentives. More and more attention is being paid to overcoming these barriers. With support from the MacArthur Foundation, NBI has worked with industry partners to accelerate best practices into utility program design and implementation and to make connections between owners, tenants, funders, utilities and energy efficiency experts.

Most recently, NBI worked with the Energy Foundation, the Northwest Energy Efficiency Alliance, and the U.S. Environmental Protection Agency’s Energy Star program to develop this new guidance. The Multifamily Guide addresses all aspects of energy performance in multifamily buildings, including envelope, space conditioning, ventilation, site lighting, water heating, and appliances.

A larger set of technical material is available to energy efficiency program administrators to support better savings outcomes for program implementation in the multifamily market.  Learn more



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