Title 24 Radiant Barrier

Radiant Barriers
The radiant barrier is a reflective material that reduces radiant heat transfer caused by solar
heat gain in the roof. Radiant barriers are installed below the roof deck in the attic and
reduce radiant heat to air distribution ducts and insulation located below the radiant barrier.
To qualify, a radiant barrier must have an emittance of 0.05 or less. The product must be certified by theCalifornia Bureau of Electronic and Appliance Repair, Home Furnishings and ThermalInsulation and listed in its Consumer Guide and Directory of Certified Insulation material, athttp://www.bhfti.ca.gov/industry/tinsulation.shtml.
Methods of Installing Radiant Barriers

(Excerpted from CEC Title-24 Part 6 Residential Compliance Manual)

Title 24 is an estimation of how much energy a proposed building will consume. This estimate is then compared with a comparable ‘code minimum’ building to show that the proposed design is more energy efficient. The results are printed out in the form of a report that can be submitted to building department for permit.

Title 24 Radiant Barrier

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Title 24 Report