41. The fanlight detail is echoed by semi-elliptical fan louvers above each window. 42. The east and west elevations feature bright blue adjustable aluminum louvers for sun control. 43. Cornering was achieved by means of louvers , which regulated the flow of air. 44. Several door and window openings have been infilled with metal louvers of limestone blocks. 45. Various window types feature including three-light casements, aluminium sliders and louvers . 46. Window louvers automatically opened and closed with sun. 47. The glass curtain wall received new mechanical louvers . 48. The noise increases as the air is sucked through those thin, closely spaced louvers . 49. I suggest Phil pull off the front covers and louver , and verify my prognosis. 50. Even the vent louvers are gleaming metal.
