TITLE 24 CALIFORNIA ENERGY CODE:
CERTAINTEED SOLUTIONS AVAILABLE NOW
WHAT IS TITLE 24?
The California Title 24 Building Energy Efficiency Standards are designed to ensure new and existing buildings achieve energy efficiency and preserve outdoor and indoor environmental quality. These measures (Title 24, Part 6) are listed in the California Code of Regulations and are updated by the California Energy Commission (CEC). For full code information visit: http://www.energy.ca.gov/title24/
HOW DOES THIS APPLY TO INSULATION?
Buildings that comply with the prescriptive standards shall be designed, constructed, and equipped to meet all of the requirements for their appropriate climate zone. Roof and Ceiling insulation shall be installed in a ventilated attic with an R-value equal to or greater than climate zone requirements through the below options:
Option A: A minimum R-value of continuous insulation installed above the roof rafters in contact with the roof deck and an additional layer of ceiling insulation located between the attic and the conditioned space when meeting Section 150.1(c)9A; or
Option B: A minimum R-value of insulation installed between the roof rafters in contact with the roof deck and an additional layer of ceiling insulation located between the attic and the conditioned space when meeting Section 150.1(c)9A; or
Option C/Performance: A minimum R-value of ceiling insulation located between the attic and the conditioned space when meeting Section 150.1(c)9B.
Bath Enclosure Insulation:
Title 24/QII requirements state that:
C11: Insulation must be installed behind tub, shower, or fireplace enclosures, and exterior stairwells to the R-value listed on the CF1R when located against exterior walls. Insulation is installed before tub, shower, and fireplace are installed; and
C12: A solid air barrier is installed, from floor to ceiling, on the inside of exterior walls directly adjacent to tub, shower, or fireplace enclosures. Insulation shall contact all six sides of the air barrier on exterior walls.
- When tubs, showers, fireplace enclosures, or stairwells are installed on exterior walls, QII inspection by the HERS Rater includes visual verification that these locations are properly air sealed and insulated before they become inaccessible.
- The insulation behind the tub or shower must be equivalent to the insulation in adjacent exterior walls and covered with an air barrier that is sealed at all edges and seams to provide a continuous air barrier. Any type of insulation may be installed as long as it completely fills the void and is in full contact on all six sides of the air barrier.
CertainTeed’s title 24 high performance solutions
CertainTeed understands how difficult learning and understanding how to install to meet new codes can be, which is why we’ve tried to take out the guess work, and develop easy to install insulation solutions to help you get there!