Yes, it will be more noisy than a platform layout with foam and cork, for example, under the track. Although I never got around to it a friend used acoustical tile on the wall and ceiling above his shelf and to my surprise it reduced the noise. I stuck with the noise for 15 years except when the domestic CEO was watching Oprah in the Den. A few fuzzy photos---operation removed in 2008. (14x32 w/20' ceiling@ ridge, 5 tracks).
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