Patent Number: 8,871,334

Title: Solar heat responsive exterior surface covering

Abstract: An exterior surface covering has a colored outer layer that transmits infrared radiation and an inner layer with a thermochromic pigment that absorbs heat at low temperature and reflects at high temperatures. The outer layer conceals the color change of the thermochromic pigment.

Inventors: Kalkanoglu; Husnu M. (Swarthmore, PA), Shiao; Ming Liang (Collegeville, PA), Hong; Keith C. (Northborough, MA), Jacobs; Gregory F. (Oreland, PA)

Assignee: CertainTeed Corporation

International Classification: B32B 7/02 (20060101); B32B 27/08 (20060101)

Expiration Date: 2018-10-28 0:00:00