CORTINA \ˈkôr tēn ä \
n 1 a: A Cradle to Cradle-certified solar-protection textile used primarily for window shades. b: Made by Mermet from 100 percent PVC-free, recyclable polyester. c: Has a 5 percent openness factor with a woven pattern that resembles tree bark. (Its counterpart, Siena, has a 7 percent openness factor.) d: Eligible for credits from the U.S. Green Building Council’s Leadership in Energy and Environmental Design (LEED) green building certification program. e: Meets fire-safety and clean-air standards in schools.