Abstract: A constructive system applied to buildings in general, to form walls, by means of modular foldable frames attached, who allow to place from the upper part blocks or plates and support it.The blocks have horizontal or vertical holes, to pass brazing rods, linkes with the frames.The blocks when overlapped form channels, to pass rods linkes with the frameThe frames when are formed by two vertical jambs and two horizontal articuladed piedes. When joined together with other adjacent, form filling channels, to fill with resistant materials, and other channels to fill with materials to seal joints of blocks or plates.The frames with the resistant channels, rods, blocks or plates, resist better strong winds and seismic movements.