I've been repeatedly assured that everything can be taken care of magically.

[ She doesn't like that answer. It's not that she doubts Heimr's abilities, but she doesn't know how this magic works, and she doesn't want to rely on something so vague. ]

I was able to find a book with what I believe are the correct formulas, though. With proper framing it will hold up against the normal dangers. For everything else, I'm not sure.