the shutter net 26 can automatically be lowered if increased wind conditions are sensed once the increased wind condition has subsided the shutter net 26 can be raised again the uv intensity sensor 76 may be configured to determine the amount or intensity of sunlight directed toward the home or building the intensity sensor 76 may be embodied as an omni directional sensor or individual sensor placed in various sunlight or uv intensity levels corresponding to unacceptable uv levels that may be harmful to furniture or individuals the shutter net 26 can be lowered automatically if such levels are sensed it is to be understood that the computer control 72 can control individual shutters 10 covering respective windows 12 in the home this allows independent lowering and raising of each of the shutter nets 26 of the home as needed or desired for example if intense sunlight has been detected by the uv intensity sensor as emanating from only a particular direction then the computer control 72 may cause only the shutter nets 26 on windows facing that particular direction to be lowered the alarm system 80 may be configured such that if a break in in the home is detected by the alarm system 39 s own sensors the alarm system 80.