anyone heard of condensation issues with solartube type skylights?
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We have two solartubes in our new house in th UP of Michigan, one in the kitchen and one in the master bath. We love them, and have no probloems with condensation after two winters. They are fantastic. In the master bath, you would never turn a light on on a half-way sunny day. Go for it!
I don't believe I've ever heard of any.
Stands, a bit, to reason. The tube contains room-temperature air right up to the bottom of the lens on the roof. Even at night, warm air stays up in the top of the tube, even with cold attic air around it. Any air cooled by contact, would "fall" out of the tube to be replaced with warm air from the ceiling.
Probably, it never even gets close to dew point in the tube, except for, possibly, a few days during the transition from heating to cooling and vice versa.
The light kit that most of the brands offer is a good deal--if only so that when people try to turn the solatube "off" during the day, "something" actually happens.