A triangular support element with a pre-set module incline angle. Intended for ensuring the optimum incidence angles when setting up solar modules onto building roofs. Generally for a landscape layout of standard sized modules in a single row. Connected rows of supporting elements share wind load and are therefore appropriate for greater loadings. The triangular support element is intended for mounting solar modules on level roofs or roofs covered with sheet metal roof coverings, to which they are fastened simply by using suitable screws or weight elements. The upper part of the triangular support element is fastened with bolts in preset holes of the bottom triangular plate.The use of additional fasteners is not needed.