Radiant Heat Barrier Installation in homes usually in attics primarily to reduce summer heat gain and reduce cooling costs. The Radiant Heat Barriers barriers consist of a highly reflective material that reflects radiant heat rather than absorbing it. They don't, however, reduce heat conduction like thermal insulation materials. Call us @ 1-800-511-0184. For more information click here http://www.pssolarsystems.com/radiant-heat-barriers/