correct me if i'm wrong, but aren't those aircon pipes for keeping the cold inside getting out, and not the other way around ?
i thought those mats (thin, blue one side, silver the other) they use in wood-framed 2 storey houses would be the stuff you're after.... keep the HEAT OUT ? not cold IN ?
Or am I dribbling faeces again ? anyone ?
if so, my gf works at an aircon place.... free ducting for all!