You don't rent a log house to operate a glass manufacture inside! Each construction have limits of usage, quality or quantity wise, you know that.

Those put their operation into a place must ascertein that the location can withstand the operations and its risks. Even renting a flat put limits on your activity in the contract, what you can or cannot do there.

If they requested the proper fire rating and safety measures then it is not their mistake being deceived. Otherwise it is.