Clairvoyance and Biofiber, Can you see through biofiber with it? Options

[Frag-o Delux]

Last night I was trying to break into a corporate retreat for the rich and weary. Well I thought I set off an alarm, and I knew where the security shack was. I figured I would try to peek into the security shack with Clairvoyance to see what was going on and maybe use Clairaudience, to hear what they were planning, so I could plan my next step. Well they had the shack protected with biofiber. The rule book just kept saying it stops astral bodies. I was willing to agree with the GM that a spell was considered an astral body but they have changed rules on magic a few times since we started in '89 :). Well we were not willing to just say biofiber stops it, and set a presidence that will up set the game later. So after a quick search with little results, we just decided to hold the game, and resume next week. It was getting late also. So what is everyones thoughts does biofiber stop clairvoyance? I haven't had a chance to do any research today but I will later, but I am also curious as to what everyone else's thoughts were on this subject.