Posted in Industry News
California’s Title 24 Lays Foundation for Energy Efficiency Across the Industry
California has long been leading the charge in reducing energy use. As part of its plan to achieve Zero Net Energy for all new residential buildings by 2020, California recently updated its building energy codes, commonly known as Title 24. In effect since January 2017, the updated Title 24 Part 6 focuses on five key areas for residential construction:
- High-performance walls
- Increased building envelope requirements
- High-performance lighting
- Water heating
- High-performance attics
To meet code for high performance attics, builders can choose from multiple building methods per Title 24. A few of these methods can be built using LP® TechShield® Radiant Barrier Sheathing.
Made by laminating a thin, durable sheet of aluminum to LP OSB Sheathing, LP TechShield is designed to lower a home’s attic temperature and reduce cooling costs. Although LP TechShield can be used in multiple building options that comply with the new code, LP Building Products recommends a code-compliant alternative to Prescriptive Option C, commonly known as “Deeply Buried Ducts.”
Originally, Option C required builders to install ducts within the conditioned space. The Deeply Buried Ducts alternative allows a more intuitive and simpler method that could provide time and labor savings benefits. By burying the ducts beneath standard insulation materials, builders have a cost-efficient way of meeting the Title 24 code that is easy to understand and fairly easy to integrate into existing plans.
Performance Method – Alternative to Option C – Deeply Buried Ducts
- R-8 insulated flex duct on drywall ceiling plane or in dropped soffits
- Covered with at least R-30 insulation or 8˝+
- Air handler located inside conditioned space (in a small attic, this can be located on floor below, NOT in attic)
- Radiant barrier required
Complementary Image for Performance Method – Alternative to Option C – Deeply Buried Ducts:
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- Saves time and labor for HVAC professionals. Running ducts between the joists is simpler than running them through the rafters in an attic.
- Eliminates the need for spray foam, a costly material that can exacerbate water leaks by covering water damage until it’s a serious problem.
- Integrates easily into existing building plans.
As green building becomes a larger focus in the building industry, Title 24 is expected to lay the groundwork for new regulation throughout the country. In the meantime, these changes are predicted to drive new building practices into the market that will likely affect builders and contractors nationwide. Already, many national builders are adopting the Title 24 building practices across all national projects to maintain consistency.
Learn more about energy saving and the benefits of using LP TechShield here.
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