Anyone have an issue with sound deadening board around a recessed light? Joists were strapped. 4" Juno ICC lights installed. Sound deadening board installed, then 1/2" blue board going on over that. I've been looking on the internet, but can't find anything about fire rating or lack of for the SD board. Im going to ask supplier Monday. Plenty of space with the can to pull down the lip to be flush with the plaster finish. Thanks, Nick.