Silicone impregnating waterproofing, transparent, breathable, without solvents, suitable for the protection of tiled roofs and cladding of buildings with decorative ceramic bricks. It does not form a surface film, does not affect the shade of the surfaces where it is applied, does not shine and does not turn yellow. Protects surfaces for at least 10 years from the absorption of moisture and the appearance of cracks and breaks from prolonged snowfall and frost. It does not favor the growth of mold, lichens and greenery and 'prevents' the deposition of mud.