Yemeni Window: Mashrabiya Pattern
The mashrabiya (also mashrabiyya, or in Yemeni context often called rowshan) is a projecting enclosed balcony or window screen of turned wood latticework that filters light, provides ventilation, and maintains privacy in the domestic architecture of Yemen, Egypt, the Levant, North Africa, and the broader Islamic world. In Yemen - particularly in the historic tower houses of Sanaa and the mudbrick cityscapes of Shibam in the Hadhramaut valley - this tradition achieved its most elaborate visual development.
Architecture and Function
The physical mashrabiya screen performs three simultaneous functions: it allows air circulation through the lattice gaps (critical in Yemen's hot climate); it reduces direct solar glare while admitting diffused light; and it allows the occupants to see out without being seen from the street. This combination of ventilation, light control, and privacy made the mashrabiya essential to Islamic domestic spatial conventions where the division between public and private space is architecturally enforced.
Yemeni rowshan are distinguished from Egyptian and Levantine mashrabiya by their use of coloured glass panels (takhrim) set within the lattice frame. In the tower houses of Sanaa's Old City (a UNESCO World Heritage Site since 1986), upper storey windows combine white alabaster or gypsum transom panels with geometric turned-wood latticework in multi-colour patterns. When interior lamps are lit at night, the coloured glass transmits jewelled light across the narrow lanes below.
Visual Characteristics
The turned-wood mashrabiya lattice uses a repeating modular geometry: the basic element is a turned wooden spindle, identical to its neighbours, assembled by pressing the spindle heads into intersecting grooves. The size and spacing of the spindles determines the visual density. Common geometric patterns include octagonal star fields, diagonal square grids, and hexagonal honeycomb arrangements. No glue is used - the lattice is assembled by friction and gravity.
Yemeni tower house facades are read as vertical compositions: lower floors of stone or rammed earth are followed by upper floors of fired brick decorated with white gypsum geometric friezes and the coloured-glass rowshan, and culminating in open-lattice uppermost rooms that function as wind-catchers.