Abstract: The present invention relates to A roof-covering element (10), with an upper surface (11) and a lower surface (12), whereby for roof covering a plurality of elements (10) is juxtaposed in a particular way such that neighbouring elements (10) are interconnected by means of an interlocking arrangement (13, 14, 15), and whereby the roof-covering element (10) comprises means for exchanging heat with the environment, where at least one of the surfaces (11, 12) of the element (10) is at least partially made of a metal alloy. The particular roof-covering element (10) can in particular be made of an alloy comprising any combination of copper (Cu), zinc (Zn), manganese (Mn) and iron (Fe), i.e. the alloy CuZn40Mn2Fe1. The roof-covering element (10) according to the present invention can also comprise a cavity (16), provided inside the element (10), in which a fluid is circulable for heat exchange with the environment.