I found this thread while looking for advice on keeping bears away from yurts. Since putting mine up in 2014, we have had multiple visits from black bear... and a lot of damage ranging from minor to more substantial and widespread. This yurt is used about 1-2 times month on average, in the Idaho backcountry.
I knew from the onset that bear could be nuisances so took the most often suggested precaution: Keep odors down, particularly food odors. Most backcountry yurts I've been in reek of meat grease, particularly bacon. For that reason, we've never cooked meat in our yurt nor have we allowed guests to cook meat. We've been absolutely anal about cleaning the kitchen and utensils thoroughly, not storing food, toothpaste, etc inside. We even began cooking outside...and took the hand sanitizer out...because we discovered the bear is/was attracted to that. Still.... we continue having problems which has me constantly wondering why.
The one thing at our place that seems to get hit every time is the outhouse. The bear seem to be attracted to our poop of all things. So... I am going to empty the "contents" of our sawdust bucket toilet and bury each time before we leave. I also suspect that bear have come to associate man-made items with food... and even if they don't smell something, they will try to get inside anyway... just to make sure... whether it's a yurt, box, sauna, car, whatever. On our last break-in, the bear tore through our vinyl window and pulled a sheepskin rug outside (it has an odor to it, as my sniffer found). So, that too is no longer left in the yurt.
Lastly, it seems the bear around our place will tear up things indiscriminately. A barbie doll left on our sauna door: Ripped up twice now. Tire on the wheelbarrow: Shredded! Seriously?? Why would a bear be interested in a tire!!!??? The chimney on the sauna: Ripped off! And I could go on....
So, when I read things like "you'll be fine if you don't leave food" which... seems a fairly common belief, I have to laugh... or think to myself the person writing that has no personal experience...or, they have far less pesky bears than we. No food? Our bear don't care!
I have considered lining my walls with corrugated metal roofing... on the outside. It wouldn't cost too much and would save a lot of headache with patching rips in the cover. But.... it would be a pain to install and wouldn't look all that great. So, for now, I'm trying a trip line attached to a device that fires blank 12 gauge shotgun shells. What a pain to disarm the thing every time I go to my yurt but....we'll see if it works. I'm hoping the loud bang will scare the thing/s off!!
Other things I have or am considering: A scarecrow holding a windmill (or something that spins in a breeze) I move during each visit... though bear may be too smart for that; Solar powered electric fence (though I don't know much about them); Cans of bear spray scattered a short distance from the yurt, with a little bacon grease (or similar food bait). That's a tip I got from an Alaskan outfitter for grizzlies. They bite into the cans, get a mouth and face-full of spray and bolt! But...I'm not sure I want to "bait" a bear to my place with food odors. What if that's not enough to deter the bear... or other bear smell it can and start coming around!??
Anyone out there have firsthand experience with problem bear and methods of keeping them away... or from tearing things up? Tired of spending all my time at the yurt patching damage instead of enjoying the place.