HI. I AM LAYING NEW INSULATION IN THE LOFT.THE EXISTING LOFT FLOOR HAS BEEN COVERED WITH CHIPBOARD AND NAILED TO THE JOISTS.I AM HAVING A GREAT DEAL OF TROUBLE REMOVING THESE BECAUSE OF THIS AND I THOUGHT OF LAYING ANOTHER FLOOR ON TOP OF THE EXISTING ONE.COULD SOMEONE PLEASE TELL ME IF THIS IS POSS...