I'm laying floormuffler on an above grade concrete slab & it says to tape the seams using a tape that meets or exceeds the manufacturers moisture vapor transmission rate (1.39 lbs. per 1000 square feet per 24 hours).
I have a roll of Scotch pro-strength industrial & hvac duct-tape http://solutions.3m.com/3MContentRet...ersion=current & am wondering if this will do the job or if someone can recommend something else.
says that Floormuffler "Exceeds recommended moisture permeability ratings for installation over concrete slabs."
Since any moisture in the slab can evaporate through the Floormuffler, I'm wondering how much of a problem would be created if it couldn't also evaporate out of the small amount of area covered by the taping of the seams. My hunch is that you wouldn't have a problem regardless of what tape you used on the seams.
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