Better Homes, Better Future

Three RESNET standards combined: 1 - operations (HERS Index), 2 - the grid (CO2 Index) and 3 - embodied carbon (currently being written) provide capacity to analyze Carbon Usage Intensity. We'll explore time-of-use, load reduction and carbon sequestration in buildings at both the single-family and multi-family scale (500 units) to show cumulative impact. And discuss policy benefits of energy labeling and decarbonization for advancing energy equity, so that vulnerable populations can make informed housing opportunity decisions.

While the content is technical in nature, the presenters will draw a direct relationship to equity in the context of who has access to low carbon housing and how carbon reductions strategies in both operational and embodied phases can be scaled to the housing industry at large through the standards and programs being developed through RESNET. While the early adoption of low carbon strategies have been pioneered in large part by well-funded custom single family construction, the approaches being discussed in this presentation are designed to bring much broader access to the industry at large and in so doing, increase resiliency. Further, we will explore equity from a climate justice lens to understand which communities are most directly impacted by the climate crisis that the residential housing sector is currently contributing to and provide the context and motivation for why building resilience through these initiatives is so critical.

Learning Objectives:

1) Understand how the RESENT Carbon "Trifecta" allows calculation and analysis of blended metrics like Carbon Use Intensity.

2) Understand how such a blended metric facilitates a Whole Lifecycle Analysis at the residential scale and how close we are to being able to do this.

3) Understand the role that HERS Raters play in resiliency, especially in EJ neighborhoods, though the evolution of dynamic grid electrification, load management/reduction and carbon sequestration in buildings.

4) Understand the cumulative impact of simple materials substitutions at the scale of a residential development of 500 units.

In the 2006 International Energy Conservation Code (IECC), the primary residential provisions of the code (Chapter 4) consisted of four pages. That same chapter in the 2021 IECC is 21 pages long! Mandatory, prescriptive, performance, energy rating index, additional efficiency packages and UA trade-offs all combine to make IECC compliance complicated.

Prescriptive compliance is increasingly more expensive and complicated to use, and the performance compliance option doesn’t allow consideration for high efficiency equipment. The energy rating index path provides a whole-house performance approach but has aggressive targets that are complicated with amendments for ventilation requirements and no requirements for quality assurance oversight of third parties.

If the energy code’s primary purpose is to reduce energy consumption, why can’t we set performance goals and let builders figure out how to achieve it?

One recent example of this approach is in Texas. Texas House Bill 3215 updated the state’s universal energy code compliance pathway to allow builders to use the energy rating index for energy code compliance across the state, in lieu of the state energy code or any stretch code adopted by municipalities. The legislation ratchets down target ERI scores to improve efficiency through 2028, allowing builders to plan for future efficiency requirements.

Attend this webinar to learn how a simpler approach to energy code compliance can work, how it can be used to set a path to net-zero energy and how to implement it in your state.

Learning Objectives:

In this session, we will build on our 2023 EEBA Summit session “Are You Leaving Money on the Table?...” and dive deeper to guide builders of single family and multifamily homes in your pursuit of the 45L Tax Credits via ENERGY STAR or Zero Energy Ready Homes (ZERH) certification, as well as 179D Tax Credits and HUD 221(d)(4) Loans for builders of multifamily homes. We will highlight the requirements that need to be met for your homes to earn ENERGY STAR v3.1 and v3.2, as well as ZERH. We will explain many cost-effective strategies to transition to earning ENERGY STAR, and then to earning ZERH. We will discuss what your trades may have to do differently, who is responsible, and when to address. And we will highlight how RESNET HERS Raters can be your resource for you as homebuilders to earn the 45L and 179D Tax Credits, and to be eligible for HUD 221(d)(4) Loans. Your RESNET HERS Rater can help you realize how close you may already be to earning these benefits, and what else you can do to get there cost-effectively.

Learning Objectives:

1. Learn about the 45L Tax Credits for builders of single family and multifamily homes, and the 179D Tax Credits and HUD 221(d)(4) Loans for builders of multifamily homes.

2. Identify what your trades may have to do differently to help your homes earn ENERGY STAR and ZERH certifications. Learn which trades are responsible for which items, and when to address each of these items.

3. Understand the many cost-effective strategies to earn ENERGY STAR and ZERH certification.

4. Learn how HERS Raters can be your resource to earn the 45L and 179D Tax Credits and to be eligible for HUD 221(d)(4) Loans.

Hempitecture CEO, Matthew Mead, provides an overview of the natural fiber insulation market that is rapidly developing to support low embodied carbon construction. Reviewing different products and strategies, this session will discuss how to achieve the lowest total carbon footprint for a project after accounting for both embodied carbon and operational carbon in the building.

Learning Objectives:     

More energy efficient homes represent a huge, and growing, opportunity for builders and remodelers to address homeowner demands. Driven by a growing social consciousness, new rebate programs and rising energy costs, homeowners want to explore options and will be more likely to commit. Plus, new technologies are making the process more efficient and effective. In this session, building performance experts share best practices to capitalize on the growing business opportunity, and help you feel good about your contribution to the planet.

Learning Objectives:

1. Quantify the business opportunity for both retrofit and new construction residential projects.

2. Discuss how to enable technology to do the hard work of finding the right building performance solutions for a variety of climates that can achieve a number of results, from carbon neutral to zero net energy.

3. Understand consumer demand and how to leverage it through marketing and sales activities.

4. Learn about all the incentives available to make this opportunity as fruitful as possible.

Speakers: Jennifer Castenson, Travis Brungardt, Casey Murphy

The carbon emissions and embodied carbon in single and multifamily homes are a growing area of interest and concern in the housing industry and can be used as an advantage in marketing and sales. Air leaks in the building envelope account for the most significant portion of wasted energy in the heating and cooling of homes, thereby creating a major source of carbon emissions throughout the life of the home. This session will explore the reductions in carbon emissions that can be achieved through a more airtight building envelope. Analysis will be presented that reveals carbon emissions reductions for different levels of air tightness across the different climate zones in North America. The embodied carbon impact of air sealing materials will also be presented and discussed.

Learning Objectives:
1. Understand the impact of heat loss and gain due to air leaks in homes.
2. Understand the impact that air sealing a home’s exterior envelope can have on reducing the operational carbon emissions throughout the life of a home and in different climate zones.
3. Understand the embodied carbon impact of air sealing materials.
4. Understand how an air tight envelope can contribute to a net zero carbon home.

Speakers: Bill Shadid & Gord Cooke

Are your ventilation practices keeping up? With the envelope of the home becoming tighter through new code standards, improved building materials, and increased awareness of Indoor Air Quality, a balanced ventilation strategy is critical for the health of the home and its occupants.  Join us to discuss the evolution of building ventilation codes, how to incorporate ventilation into voluntary programs like NetZero, which solution is the right choice for your home, and how to build a Healthy Air Home with additional Indoor Air Quality products. 

Topics/Key Learnings

Closing keynote speaker, Eric Amyot, at the 2023 High Performance Home Builder Summit!

KB Home, in partnership with SunPower, the University of California, Irvine (UCI), Schneider Electric, Kia America and Southern California Edison (SCE), built two blackout-resistant communities, Durango and Oak Shade, comprised of more than 200 all-electric, solar- and battery-powered homes designed to use 40% less energy than similar homes and backed by a microgrid “community battery” in Menifee, California. This first-of-its-kind project models what the future of homes and connected communities could look like: creating minimal disruption to homeowners’ daily lives while significantly improving energy resilience for the community and energy efficiency for the broader region.

Learning objectives:

In this webinar, you will learn about heat pump inverter technology from Daikin Comfort Technologies North America.  We will explore the many benefits of inverter technology and what this means to your new homes and homebuyers.  We will also explore Daikin and Goodman’s NEW heat pump inverter offerings along with smart controls and IAQ options.

Learning Objectives: