The seminar was organized by David Yarbrough of R&D Services Inc., with William Miller, University of Tennessee, and Som Shrestha, Oak Ridge National Laboratory, participating. The seminar was proposed through ASHRAE Technical Committee 4.4 - Building Materials and Building Envelope Performance. The seminar consists of three technical presentations that cover the use, evaluation and benefits of reflective insulation, radiant barriers and low-emittance coatings. A comprehensive view of computer modeling of attic radiant barrier thermal performance will be an important part of the seminar along with recent research activity in the area of reflective technology.