Title 24 roof requirements as part of 2010 s standards for both residential and non residential must be equipped with a cool roof.
Roof tile asri title 24.
We ll focus here on how title 24 applies to low rise residential homes with traditional steep sloped roof styles having a rise to run ratio greater than 2 12 2 feet of rise for every 12 feet of roof span or more than 9 5 degrees from horizontal.
Roofing products with high solar reflectance and thermal emittance are referred to as cool roof which is the outer layer or exterior surface of a roof.
Roofing plays a major role in home energy efficiency and title 24 has very specific standards requiring cool roofs for california residents.
The new cool roof requirements affect new construction significant repairs of existing roofs re roofing plus additions and alterations of existing buildings and homes.
A cool roof absorbs less heat as it reflects more light from the sun.
As the term implies the temperature of a cool roof is lower on hot sunny days than a conventional roof reducing cooling loads and the energy required to provide air conditioning.
California s building energy efficiency standards for residential and nonresidential buildings title 24 part 6 contains requirements for the thermal emittance three year aged reflectance and solar reflectance index sri of roofing materials used in new construction and re roofing projects.
The title 24 roofing code establishes new requirements to promote the installation of cool roofs in steep slope construction.
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.
Since buildings are one of the major contributors to electricity demand the goal of title 24 is to reduce energy consumption in california for its energy future.
They are often made with reflective tile or shingles a sheet covering or a highly reflective type of paint.
Cool roofs are roofs designed to reflect more sunlight and absorb less heat than a standard roof and need to meet or exceed the 20 requirement for aged ref.
The california energy code or title 24 part 6 of the california code of regulations also titled the energy efficiency standards for residential and nonresidential buildings were established in 1978 in response to a legislative mandate to reduce california s energy consumption.
The cool roof you need with the distinctive style you crave can be used to comply with title 24 cool roof requirements.
In essence there are prescriptive and design options for meeting the requirements that include the building design a c lights windows and roof systems.
As you have identified title 24 does create some challenges for the roofing professional.
Gaf california cool shingles are your best choice for a stylish roof in california.
