You would expect my OCD to drive some sort of ideal state in the garage, but to be honest it's just "suck it and see".
Generally speaking my measuring device shows above 30% unless its a hot summers day in which case it can drop below 30%.
But normally its more like 40+% and on damp winter days will push much higher.
I don't recall 'the science' but humidity is temperature dependant so a high percentage at low temp is not the same as a high percentage at high temp.
So long as there's no obvious moisture and no furry spanners I'm happy. My Roadster has survived this environment for eight years without the wood crumbling to dust.
