This is a followup to Can you identify these things in my wall?
Once I realized what I was seeing was the back side of aluminum siding, I started going to town ripping out drywall - and dirty, disgusting fiberglass.
Please see the below image. The blue arrows point to holes in the outside wall (e.g. you can touch the back of the aluminum siding through them). The red square shows a section is that outright crumbling.
There is no house wrap on the outside.
I have someone coming to give me a quote new siding (which.. I'll make sure they understand they're going to have to replace the outer layer of at least this wall, and that I expect proper house wrap) - but I can't even get that until April 16th - who knows how long until they're actually able to install.
I've obviously got more drywall and fiberglass to remove, but given how long it is going to take to get this fixed properly... what is a good method to at least temporarily seal this off (to block exterior air and insects - there were a ton of stink bugs in the wall)?
I don't feel like I'm going to be able to screw anything into the black OSB looking stuff - it's incredibly crumbly.
For the holes, I could probably use spray foam to fill them for now (I don't care if it damages the black material, or the siding the outside). That long crack in the red concerns me, though.