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psubaron 09-16-2011 06:41 AM

Roxul vs Guardian Insulation?
I'm about to insulate my whole house and have to decide between using Guardian brand or Roxul brand insulation. Please share your experiences with each and help me choose. I have to decide Friday. Thanks!

msaeger 09-16-2011 07:04 AM

Do you have a source for either locally?

psubaron 09-16-2011 07:08 AM

Yes I can get either locally.

Roxul is stone wool that isn't faced which is my one concern. I plan to use a vapor barrier on external walls but had hoped to use Kraft faced insulation then a vapor barrier before drywall. Perhaps this is just my lack of knowledge it just as good to used the roxul stone wool without a facing and just put plastic vapor barrior over it?

Which will give better insulation ...the stone wool or fiberglass? Roxul claims an R-23 and the guardian is r-19 for 2 x 6 channels.

concretemasonry 09-16-2011 07:51 AM

I would go with the Roxul since it is a better product.

I would just go with the Roxul and then apply a poly vapor barrier. If you are really that concerned about a vapor barrier, you could get a thicker (more mils) vapor barrier that will more resistant to holes and tears during construction.


psubaron 09-29-2011 10:31 AM

I went with the Roxul r-23 for 2 x 6 exterior walls. It installs so easy and stays where you shove it. It fits between the joists snuggly. I recommend it!

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