Abstract: In a system for mounting panels, a plurality of clips (14) is distributed at spaced intervals along an edge of a first panel (12A), respective first planar limbs of the clips (14) are located, parallelly to the panel (12A) between the panel (12A) and a structural support (10) for the panel (12A) and an edge of a second panel is brought up to the clips (14) to support the edge of the second panel (12B) on respective second planar limbs of the clips (14) parallelly to the second panel (12B). The system may also make provision for circumstances in which a first panel is not available.