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  • Can I still use gas in my new construction project?

Yes, depending on where your project is located. Several counties and cities across California have implemented reach codes, which impose additional requirements on projects.. Refer to the CA Reach Codes Map to check for any applicable reach codes in your projects location. While the 2022 Energy Code still permits the use of gas, compliance has become challenging. It's possible for either a gas tankless water heater or a gas HVAC system to meet the code, but not both simultaneously. In certain cases, both the water heater and HVAC system must utilize heat pumps. While gas systems can technically comply, they are not recommended in the long run.

  • What are the insulation requirements under the 2022 Energy Code?

The insulation standards are contingent upon numerous factors that vary widely. Each project is subject to unique specifications influenced by factors such as occupancy, the type of walls/roofs/floors, framing thickness, the type of insulation used, and more. Through the performance approach, tradeoff in insulation is possible. For instance, increasing insulation in walls might allow for a reduction in roof insulation. However, even with these tradeoffs, insulation cannot fall below the mandatory minimum requirements. To get the most accurate answer to this question, you will need to submit a set of plans to Abbay Technical Service and we will advise on the insulation needed.

  • What are HERS verifications and when do they apply?

HERS verifications are residential requirements that are triggered by certain building and compliance features. While some verifications are mandatory, others are included to increase compliance. For instance, whenever a new kitchen range hood is installed, a mandatory HERS measure is triggered to confirm that the hood meets airflow and sound requirements. Others are added strictly because they can help with energy compliance. These verifications are conducted by a certified HERS rater after the project has been uploaded and registered through a HERS registry website (such as CHEERS or CalCERTS). HERS verifications occur at various stages during the building process. Reach out to a certified HERS rater, and they will guide you through the process for your project.

  • Why can't I use electric resistance for space heating and water heating?

The California Energy Code advocates for all-electric homes; however, not every electric system is permissible under the code. Electric resistance space heating cannot serve as a primary heat source according to the code. It may be utilized as a supplemental heat source if it meets specific requirements, which we can provide guidance on. Electric resistance water heating, including electric tank and electric tankless systems, also leads to non-compliance with the project. There are certain exceptions for remodels involving the replacement of existing electric systems, but generally, they are not recommended. Accessory Dwelling Units (ADUs) under 500 square feet may employ a point-of-use electric water heater, provided the rest of the building complies with the code regulations.

  • How long does it take to receive a set of Title 24 documents?

This questions varies project to project and is difficult to answer without having the proper project information. Below are things that you can do to help speed up the process.

  •   A complete set of plans that are legible and accurate

  •   Good communication throughout the process

  •   Getting your project to us in the planning/design stage of the building

  •   Preplanning for energy efficiency to minimize design changes

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