I have several questions. 1) our kitchen and dining area is very dark, the ceiling has nice beams but floor inbetween is wood so doesn’t reflect light. I don’t want to sheet rock between the beams, what do you recommend? 2) some of the wood inside seems rough and collects dust. I have to vacuum it, can’t wipe down. What can I apply to walls to make smoother without sanding? 3) the cathedral peak in our bedroom was getting condensation real bad, now discolored do we need to sand it? We run the