In the average household of about 2-4 residents, carpet lifespan is usually about 3-5 years. It is by this point that most carpet fibers become old and frayed. Stains will also have sunk in, turning what started out as a pure white carpet into something graying and dull
http://www.mertelcarpets.com/what-is-the-lifespan-of-carpet.html
同時建議您 read this ...
http://www.illinoislegalaid.org/index.cfm?fuseaction=home.dsp_content&contentID=75
你的問題是你必須說明對方有此一說的原因是什麼? 處理問題,需要先知道原因....