When I wanted to install radiant barrier insulation in my attic all I had to do was go online and look it up. (edutopia.org)
Low - E Windows, Reflective Radiant Barrier Sheath, High Efficiency HVAC 14 + SEER, High Efficiency Gas Furnace, Programmable Thermostat (redfin.com)
A reflective, radiant barrier on the roof structure in the attic also could offer significant help, according to the Florida Solar Energy Center. (scientificamerican.com)