Hy-Lite’s acrylic block operable awning windows  with E3SunBlock meet Energy Star qualifications for most areas of the country. Hy-Lite also offers operable windows in slider, casement, hopper, and single-hung configurations. Pre-framed units come with low-maintenance vinyl frames and provide ventilation, while protecting homeowner privacy and offering energy efficiency.
Editors’ Comments: Who says block walls can’t function like windows? With this addition, Hy-Lite offers five types of operable block windows: awning, slider, casement, hopper, and single-hung.