Bob,
Here we have baseboards that go along the bottom of the walls (skirting?), and then may have quarter-round molding at the bottom of that. If that's your system as well you can leave the baseboards as is, lay the floor with spacing , and then cover the gaps with the quarter round.
If you are laying tile, you do not want the skirting in place, as it's almost impossible to keep the mortar off, and it's a pain to tape it all off. (Ask me how I know).
For a floating floor, I can also recommend that the underlayment be the kind that comes in rolls and is duct-taped together. My upstairs floor over the garage had a rubber pad glued under the laminate, and when cutting it generated a rather foul dust.
Best of luck
Kirk