Building protection system, in particular basement protection system, for protection against damage to buildings, in particular wetness and/or moisture and/or mud and/or flooding, which has at least one regulating unit for regulating the air humidity and/or temperature, wherein the regulating unit is configured such that the regulation of the air humidity and/or the temperature is changed and/or adapted by events which cause additional ingress of wetness and/or moisture into the building, in particular into a basement room, wherein the change in the regulation by the events is prioritized with respect to the regulation of the air humidity and/or the temperature, wherein the regulating unit is configured to take protective measures depending on a prioritized event, wherein the regulating unit deviates from normal operation; wherein the regulating unit is signal-connected to at least one actuator for regulating the air humidity and/or the temperature, wherein the actuator comprises a fan for active ventilation and/or a window for passive ventilation and/or a dehumidification device, wherein the actuator comprises a heating thermostat, wherein the heating thermostat is adapted to regulate, in particular to increase, the indoor temperature in the building to prevent condensation of moisture when ventilation or dehumidification of the indoor air is not possible due to the prioritized event, wherein the regulating unit is configured so that a manual release is required after the prioritized event in order to return to normal operation, characterized in that the regulating unit is configured to monitor a running time and/or a number of actuations and/or a fill level of at least one actuator and to output a signal and/or a message when a predefined limit value of the running time and/or the number of actuations and/or the fill level is reached and/or exceeded. the regulating unit is configured such that the regulation of the air humidity and/or the temperature is changed and/or adapted by events which cause additional ingress of wetness and/or moisture into the building, in particular into a basement room, wherein the change in the regulation by the events is prioritized with respect to the regulation of the air humidity and/or the temperature, wherein the regulating unit is configured to take protective measures depending on a prioritized event, wherein the regulating unit deviates from normal operation; wherein the regulating unit is signal-connected to at least one actuator for regulating the air humidity and/or the temperature, wherein the actuator comprises a fan for active ventilation and/or a window for passive ventilation and/or a dehumidification device, wherein the actuator comprises a heating thermostat, wherein the heating thermostat is adapted to regulate, in particular to increase, the indoor temperature in the building to prevent condensation of moisture when ventilation or dehumidification of the indoor air is not possible due to the prioritized event, wherein the regulating unit is configured so that a manual release is required after the prioritized event in order to return to normal operation, characterized in that the regulating unit is configured to monitor a running time and/or a number of actuations and/or a fill level of at least one actuator and to output a signal and/or a message when a predefined limit value of the running time and/or the number of actuations and/or the fill level is reached and/or exceeded. <EOS>