We have a house from the 60's that is built with tongue and groove vertical siding. I read that the sidings should not be caulked. Unfortunately this has been caulked by the previous owner and recaulked by the painters 4 years ago. The caulk on the South side is starting to fail with gaps. Should I strip the caulk/recaulk, strip the caulk/leave it alone, strip the caulk/paint over, or... Thank you!