This is my first post. I (perhaps unwisely) decided to do my own finishing on my house. The house was 2×6 framed, housewrapped, sided (in vinyl) before this past winter winter. I’m in central Wisconsin. I had the furnace (direct vent) installed and began heating the house since the winter started. I started doing the insulation about the same time along with other finish work. I have a simple 2 level rectangular home including poured cement basement foundation. I don’t have drywall on the walls yet. And I don’t have plastic (vapor) barrier on the inside of the 2×6 walls. I had the upstairs ceiling drywall put on before winter set in and got R60 blown-in cellulose. I started heating about that time. I’m only heating the main level and basement to about 57F. The upper level also has a furnace but it isn’t running. It’s probably about the same temperature upstairs due to air movement from below.
Apparently I thought it was ok to put the “lid” on the house and insulate with some heat going in the house before getting plastic on the 2×6 studs.
I recently pulled back the main level insulation just to check behind and noticed that the main level north facing exterior walls seemed a little damp but appear fine otherwise. The main level, east, west, south exterior walls seemed dry enough. I hadn’t really checked the upper level walls, expecting to see basically the same thing. But when I mentioned to my framer/contractor the main level dampness he mentioned it might be good to pull back the insulation and let the walls dry and then put the insulation back up and then the plastic vapor barrier. I had only seen the main level dampness at that point and mentioned it to him in passing. So I hadn’t pulled the upstairs insulation back until today. So today on the north facing walls I noticed what is in the attached pics. What is this? Is this mold? And what are my next steps here? I sent the picture to the framer/contractor today as well and he said to pull the insulation and let it dry. Is that all or do I have a major mold problem that a mold pro needs to deal with?
I’m beside myself here. Have I made a massive mistake not getting the plastic up sooner? Or do I just proceed by letting it dry and putting the insulation back up? Or do I need to get new insulation? I’m tempted to just spray foam now instead of putting that insulation back…. Not sure really what to do. Or maybe I’m worried about something that will go away like the framer/contractor mentions when it dries out.
I can provide any other info I may have missed and I really appreciate the wisdom of this board. Sorry it’s so long! 🙂
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