I just inspect my roof twice a year and apply Dicor self leveling lap sealant to any areas that look like they may need some refreshing. This would be around the vents, the front cap seal, tv antenna, skylight, etc. To be honest, in the 5 years I have owned the trailer I have not had to use much as the original caulking still looks good in most areas. Its about time for me to go up and inspect again though.
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2017 Coachmen Catalina 283RKS
2018 Ford F250 Super Duty 6.2l CCSB
2010 Jayflight 28BHS (sold)
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