Forum Discussion
LarryJM
Aug 18, 2014Explorer II
shelbyj wrote:
I noticed that the caulking on the roof is starting to crack and has a few spots on the ends that has started to pull up. Wondering if I should just caulk over the old stuff (after properly prepping) or remove the old stuff amd start fresh.
I know a lot of folks say clean good and just add more, but IMO you will never get a clean surface down inside those cracks and thus will not have good adhesion there. Not positive what the actual caulk manufacturer's recommend re: existing caulking, but in general I believe then sealing a new fixture they want the caulk to go well onto the actual roof material so one could extend that to mean you would need to TOTALLY ENTOMB the existing caulk and then go somewhat onto virgin roof material to get a good new sealing job. All this is one reason I'm in the camp of REMOVE IT ALL and go the ETERNABOND route ONE TIME and FORGET ABOUT IT.
Larry
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