How do French casement windows maximize daylight without compromising thermal comfort?

French casement windows maximize daylight through large glazed areas and narrow sightlines, a useful trait for daylight-driven design in cities like Cairo or Beirut. Aluminum frames are strong enough to support wide panes, allowing more visible glass and natural illumination without bulky profiles that block views. To maintain thermal comfort in hot climates, combine these frames with low-E or spectrally selective glazing that transmits visible light while reflecting infrared heat. External shading—overhangs, louvers or mashrabiya—further reduces direct solar penetration during peak hours, while still allowing diffuse daylight. Internally, daylighting strategies pair casement openings with light shelves or reflective interior surfaces to distribute daylight deeper into rooms. Balanced with thermal breaks in the frame and proper gasket sealing, aluminum French casement windows deliver bright interiors without excessive cooling demand, creating comfortable, energy-conscious spaces across Middle East residences and hospitality projects.