I invite you to read my thread on this subject:
https://www.backyardchickens.com/forum/viewtopic.php?id=80901
Here is part of what I wrote:
What I have learned/been through since I posted my idea here:
In July or August here we had a Tornado warning.
So I figured I should grab my chickens and have them in the basement due to the weather. From this I learned a few things:
1st) It is very difficult to round up chickens in the rain and get them all into one dog kennel with any kind of quickness, had the tornado actually come through my area I think I would have been injured or killed due to the amount of time it took me and my wife to get them rounded up and into the one large kennel, and then transporting them. For emergency transport of chickens I recommend the small(basically cat sized) kennel's. One for each of them. This way you can simply grab them one at a time, put them in a cage and move onto the next one. They are relatively cheap ($20), stackable, etc. This way you can grab multiple cages and get to your shelter. If it is an evacuation scenario they are also easily managed until you get to your destination. I've considered one of those wire cage kennels that fold down fairly easily and well, yet are sturdy when setup, with a wire floor. This way you could set the kennel on a patch of grass/bugs and let the chicken/s safely stretch out and such while you were stopped for a lunch break or enroute to your final evacuation location. Though I would add landscape cloth to keep the chickens heads inside of the kennel and avoid the sight movement exciting predators(including dogs visiting the same rest stop).
2nd) Indeed they were smelly and noisy very quickly. They did stay the night down there, but were quickly moved outside in the AM. So if someone were to keep them in the house I'd certainly recommend a room built for them with some sound proofing, an Air Purifier, and probably the peat moss too.
I think the amount of time cleaning would not be worth the trade off for not having to go outside to get the eggs.
I do not have the funds for a sound proof & air purified room in my basement so here is what I've done...