Insulating floors via a crawl space

We noticed shortly after moving in that the house was very drafty. We had the windows replaced, and I did my best to seal a crooked front door. We even replaced the skylights, but nothing we did alleviated these sometimes very cold drafts.

The home inspector noted that the insulation had dropped from the floor onto the floor of the crawlspace. This was due to the use of metal rods, or "tiger's teeth," which are no longer acceptable according to Washington State building code.

dropped insulation in crawl space

Am I supposed to see carpet from here?

In my continuing efforts to re-insulate my crawl space, I was prepping a previously uninsulated portion of the ceiling beneath the fireplace in our living room. I looked up and saw this.


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