Asset Shut down

Hello Gurus,

Here is the problem. My client aksed me to shut down assets for specific times this is easy part but when we unpick the shutdown box under asset master data, System starts to calculate depreciation however it calculates the depreciations untill reach to "0". but my client asked me that when asset reached the dead line of the usefull life system has to stop calculate and the final net book value must equal to value of months which was shutdown earlier.