rooftops? so to speak

[mythree]

Starcraft said use dap caulk no silicone, local rv dealer says to use 100% silicone. I say dadgum, which one its for the roof seams. It appears to be metal roof? 2008 starcraft 2106. PLEASE HELP!!!!!!

[downtheroad]

My opinion...you local dealer is an idiot. Never use silicone as a sealant on the exterior.

Use Proflex or Dicor.

or follow Old-Biscuit above who beat me to it...

[Old-Biscuit]

NO Silicone........unless you never want anything else to stick even more silicone.
Silicone leaves a residue that MUST be removed with a silicone remover (solvent) before anything else can stick again.

Roof seams.......
Dicor self leveling CAULKING

Vertical/sidewall seams/trim......
Dicor non-leveling caulking
OR
ProFlex Caulking

Do it right first time and save yourself problems.

[KazooTom]

I think you would best be advised to follow the manufacturer's recomendations. They built it and should know best what to use.