I keep a motorcycle outdoors under a waterproof cover, but noticed that with morning dew the bike is still noticeablely wet on the inside of the cover.
Meanwhile a buddy has his bike in a plywood shed that is by no means air tight but has 4 walls and a roof, but no insulation or air handling fans/AC and he says dew is never an issue..what’s the difference?
In: Planetary Science
Not surprising, since it’s not well know, that 53 mostly redundant comments so far and nobody has mentioned this key contributing factor, and the one that pretty much answers your question: ***the primary source of the moisture that produces morning (and night-time) dew is the topsoil itself.*** Inside the shed there’s no topsoil. (Under a forest canopy, the trees night-time aspiration is another big contributor, as are ground fogs when they occur.)
https://www.weather.gov/source/zhu/ZHU_Training_Page/fog_stuff/Dew_Frost/Dew_Frost.htm#:~:text=Second%2C%20the%20soil%20is%20often,condensation%20especially%20on%20clear%20nights.
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