Abstract: The invention relates to a support (1) for a solar panel (100), particularly for mounting a solar panel (100), having a bottom part which has a base (2) and assembly elements which are provided on an underside of the base (2) and which are intended for the purpose of assembly on an essentially flat foundation, particularly a roof, having a top, which is essentially opposite the underside and which supports the panel, with fastening means which hold the solar panel (100) obliquely with respect to the bottom part or a roof plane in a mounted state, and having a front with a surface which directs the wind (140) and which is oriented obliquely inwards towards the top from a front region of the bottom part in order to direct wind (140) towards the top in the direction of an upper edge of a solar panel (100) mounted on the support (1), wherein the surface directing the wind has an upwardly oriented tangent (W1-W3) which extends in a region around the junction between the front and the top of the support and in a di

Abstract: Composite water-retaining sheet material for roofs, comprising a layer of bituminous material, and a fully covering gritty layer provided on a side of the layer of bituminous material, wherein the gritty layer comprises synthetic granules. The material from which the granules have been manufactured has a melt flow index (MFI) between approximately 40 to approximately 60, wherein additionally or alternatively the bituminous material is APAO-, SEBS-, SBS- or APP-modified bituminous material. Method for manufacturing a composite water-retaining sheet material for roofs according to any one of the preceding claims, which method comprises the step of manufacturing the layer of bituminous material, after which, when the layer of bituminous material has not yet solidified, synthetic granules, particularly having a colour that is different from the colour of the layer of bituminous material, are scattered on a side of the layer.