I bought an old "Road Ranger" 14' single axle camper for the kids to stay in at the County Fair. Typical tin covering that was used in the 1970s. This thing has been under a roof since it was new and has never had a leak (actually looks like a time capsule inside). What would be a good WHITE coating to put on the flat roof to make sure it doesn't leak? The furnace vent and the sky light don't appear to have ever been recoated and if left in a 2" rain (guaranteed to happen at the fair) I'm sure they would leak like a sieve.
Looks a lot like this one:
https://rvs.smartcarguide.com/listing/50054045/
Looks a lot like this one:
https://rvs.smartcarguide.com/listing/50054045/