Hope’s Windows says its “Thermal Evolution” technology provides superior thermal efficiency without compromising the slim profiles of its windows. To achieve this, a thermally resistant fiber-reinforced polymer (FRP) isolator is precision-manufactured to nest within Hope’s traditional hot-rolled solid steel frame profiles and structurally bonded to the steel frames. The configuration is available for the Landmark175 Series and the Old World Suite product lines, with either true or simulated divided-light muntins. hopeswindows.com