What should I cover raw fiberglass with?

[JBaxter]

I have read through the posting about covering the inside of a trailer but there is not an one that stands out as being the best. I would like a DIY job, has anyone used the roll on wall paper stuff "fibredecor", or a spray on insulation you could sand and paint?

[Flygal]

Look down about fourteen posts from this one......title "for those of you who have replaced the interior covering" maybe that will help