Title 24 Roof Insulation Requirements

2 4 16 oc framing r15 cavity insulation and r 8 continuous in most climate zones.

Title 24 roof insulation requirements. June 2015 cec 400 2015 037 cmf california energy commission. As of january 1 2010 the california energy commission s updated title 24 building energy efficiency standards for residential and non residential roofing are now in force otherwise know as cool roof. U factor for a wall includes the effects of framing sheathing cavity insulation continuous insulation and interior exterior finishes. While title 24 applies to all residential and non residential buildings in the state the specific requirements for roofs are dependent on geographic location building use residential non residential type of construction new construction additio n or re.

For multifamily r 13 is allowed in zones 10 and 16. 2 6 16 oc framing r21 cavity insulation and r 5 continuous in most climate zones. New requirements in the 2019 california title 24 building energy efficiency standards for retail spaces. The location of ducts and ahu in conditioned space is still an option.

Additionally roofing products used for meeting the title 24 part 6 requirements must be rated and labeled by the crrc see section 10 113 of title 24 part 6. Piping insulation requirements the pipe insulation thickness table has added r values in addition. Title 24 part 6 and associated administrative regulations in part 1. Section 110 8 mandatory requirements for insulation roofing products and radiant barriers 110 section 110 9 mandatory requirements for lighting control devices and systems.

The roofing requirements can be found in the following sections of the 2019 title 24 part 6 standards. New insulation requirements below the roof deck increased from r 13 to r 19 in climate zones 4 8 16. Below deck insulation is still a prescriptive option. Crrc cool roof with aged solar reflectance 0 20 thermal emittance 0 75 7 title 24 exterior wall.

The following cool roof rating council crrc website can be used to. Do all roofs have cool roof requirements in title 24. The new cool roof requirements affect new construction significant repairs of existing roofs re roofing plus additions and alterations of existing buildings and homes. Cepe certified energy consultants experienced low rates same day turnaround.

Title 24 insulation requirements california title 24 energy reports and calcs for all projects.