Humidity needed for Ascocenda root growth

[snappyguy]

I was wondering if anyone knows what humidity level is good for growing Ascocenda roots? I bought an Ascda. a couple months ago that was dehydrated. I potted it in order to rehydrate it, but left it in the pot too long and rotted some of the roots. Even with fewer roots it seems to be getting enough water, but I'd like it to put out some new roots. My house humidity is generally between 40-50%. Is this enough?