talking to other owners of the same motorhome

thanks guys..can you elaborate on the "keep up with your roof seams" a little?...also I have some trim work that the caulking seems need work, should I clean it and just recaulk or remove the trim and replace and recaulk....this is on the sides. I havent used the camper yet and will be working long hours this week anyway but have a four day weekend coming up so will use it then...I replaced all the tires and the po said the oil had just been changed...I need to change the oil in the generator(167 hours) but thats about all I know of at least before the first trip....I've been reading and is dicor the caulk Id use on the trim?..thanks and Im soooo glad I found this forum....gerald