Board Thread:General Discussion/@comment-8714995-20130425190308

I want to protect my base from corruption before I enter hardmode so I dug a 5 block thick tunnel around and under my base so there is air between my base and the ground wich means my base is now floating, will this protect my base from corruption/hallow in hardmode? or only hallow? or neither of them? Please help, I can't find precise enough info in the wiki. 