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Jun 10, 2019
I need to replace the insulation in my attic , can I install faced fiberglass insulation over the existing vapor barrier.

Jeff Ainslie of Ainslie Group PRO answered:

Jul 11, 2019

The best move would be to simply make sure the existing vapor barrier product is installed properly (flush to ceiling below) and add blown insulation over top to to get the best R value and at the least expense.

Jul 2, 2019

No need for s econd mositure barrier which is what the paper-face is. Just roll out unfaced insualtion atop the existing. Or, as an option, rent a blower and use loose-fill insulation. 

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