Leave exterior rock wool uncovered for a few weeks?
finePNW
| Posted in General Questions on
Has anyone had experience leaving exterior rockwool uncovered during construction delays. There’s rain in the forecast and lows in the mid 40s, but I don’t think freeze thaw will come into play before we get siding up. I’m curious if folks have any thoughts on how long and under what conditions rock wool (comfortboard 80) can be exposed to the elements before being sided over?
I understand there is a technical bulletin on this, but it’s a bit vague in terms of how long it *can* be exposed.
Thanks!
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Replies
It will dry out and retain 100% of it's performance.
Simply hanging a tarp from your sub fascia to fully protect the OSB was offered by to me by my spray foam company as I wait for windows to arrive. Not a horrible idea depending on how much area you're talking about.
It will be fine.
Rockwool stays "exposed" (partially) forever on some commercial buildings that get exterior insulation + rain screen. Many commercial rainscreens are just decorative - just a screen, not a barrier. Wind & rain can get past and through them to the rockwool.
Thanks all. Good stuff.