Not quite sure what you're looking for here Robert. As far as placing something like an LTE booster in a data center, you'd just use common sense (place it in the best possible place from a connectivity standpoint). Is this something you're considering in order to provide service to folks who run LTE backup connections on their gear (like serial concentrators)? Wireless/RF site surveys and how to do them effectively are pretty well-documented at this point. 

Or are you asking about roof access/deploying antennas on a rooftop safely/securely?