I know this is "slightly" off topic, but just moved into a new build and i need to lay some loft boards for extra storage. Had a look up there this morning before the game, and there is about a 1 foot of insulation. Do i squish the insulation down and then put the boards on top. Or do i add an extra piece of 4"2 to raise the Joice then lay the boards on top. Or any other recommendations would be great.I know i could count on NSC. Ta much