Know of any uses for Pine and Spruce Bark?

In preparing the wood to build my house, I recently discovered you can get the bark off a tree cut in late winte/early spring quicker and cleaner by peeling it instead of using a drawknife, which leaves me with intact sections of bark, instead of loose shavings, which leads me to the question: What can you do with pine or spruce bark?

The bark, while still green, is sturdy and flexible. I'm curious what transformation it will go through with time + drying, and if there are any ways to prepare it for some other uses. I've heard birch bark was used to line the bottom of sod roofs, and I'm curious if anyone knows of what properties these other common tree barks have.

I've read here and there spruce bark can be used for medicinal extracts, I'm guessing, similar to the use of willow bark but I haven't found *how* it's prepared for that.

I used cedar and cypress bark as mulch for paths in my garden. Works reasonably well for that purpose.

You got me curious, so I poked around a bit online and found some neat things. :)

First is spruce bark baskets. Super pretty.



Next, a spruce bark canoe! This would suggest to me that if it can be used in lieu of birch for that, it might also work for the roof idea.

http://globalbushlife.com/building-a-spruce-bark-canoe/

Apparently it’s also used for tanning? I think I found a new someday-project....

https://www.boletannery.com/bole/tannery/spruce-bark-tanning/