extras wrote:
Do I remove the existing "caulking" from roof penetrations? Then apply new or do I just remove what loose and go over with new?
Depends on what you're using. The liquid rubber says to just use a wire brush to get the loose stuff off. It's self-leveling and will find its way around the old stuff.
Mine sat for 6+ years in a tow yard and had started to leak at every penetration. After a couple of hours work, it's sealed up tight as a drum. I couldn't be more pleased with the stuff.
MountainAir05 wrote:
http://www.epdmcoatings.com/?gclid=CJ-z_Mj9hsECFeVaMgodoVIAAg
Yes! I put this stuff on my roof and it works awesome. I didn't apply it to the entire roof - just the seams and where stuff sticks up out of it (plumbing stacks, TV antenna, vents, etc.). 2/3 of a gallon did what I needed on my Allegro M-31. The remaining stuff is in my freezer (the instructions say that freezing it stops the hardening process - I haven't checked it in a while so I don't know if that's true). I wire-brushed along all of the areas I wanted to seal to loosen any old sealant.
It's a liquid that will find its way into any crack or crevice that could cause a leak. Then it dries like rubber - still flexible and pliable. I love this stuff.
