Energy-Efficient Cool Roof Jobs Act - Amends the Internal Revenue Code to classify any qualified energy-efficient cool roof replacement property as 20-year property for depreciation purposes. Defines "qualified energy-efficient cool roof replacement property" as any roof system that: (1) is placed in service above conditioned or semi-heated space on an eligible commercial building during the period between the enactment of this Act and December 31, 2013, (2) has a slope equal to or less than 2:12, (3) replaces an existing roof system, and (4) includes insulation meeting specified standards and a primary roof covering that has a cool roof surface.