I had just been working on caulking on the roof immediately prior to the trip,
Doesn't take to much for a small fissure crack to leak if wasn't fully cured before trip. Grab a disposable paint brush and go around skylight flashing one more time.
I carry a quart of this stuff with me just in case. I like how it performs but admit I don't like how long it takes to totally dry. Seems to work itself into tiny cracks better than other stuff I've used. Maybe that's why drying time takes longer?
Someone told me you can't get this in CA if that's where your located. To many VOC's?
http://www.inlandcoatings.com/rc2000.htm And disposable wear gloves, pain to wash up afterwards.
If in doubt look at there case studies
http://www.inlandcoatings.com/casestudies.htmlStuff is not cheap. And I think gallon is smallest size you can buy. I did one 35 ft 5th wheel and one 26 ft class C and carry spare quart for emergencies, total amount used was about a gallon. If you have a roof color other than white PM me and I'll send info on tinting per their instructions. That is if you decide to go this route.