Also, butyl tapes are less sensitive to a loss of effectiveness due to high heat, like you would find on a roof exposed to the sun and its UV rays.īutyl tapes also remain more flexible when it is cold and more stable when it gets hot than natural rubber seal tape like putty tape. This is because the putty tape is made from petroleum and will leach petroleum products onto the EPDM rubber membrane, potentially damaging it.īutyl tape is made synthetically and is solvent-based, so it will not emit the same harmful chemicals onto your roof. While you can use putty tape on sidewalls, you should use butyl tape exclusively on an EPDM rubber roof. Therefore, most RV repair professionals use butyl tape as opposed to putty tape for better results long term.īutyl rubber tape costs more (nearly twice as much) than butyl tape and is more difficult to work with, but it does not dry out as quickly. Also, putty tape is not recommended for sealing components to an RV EPDM rubber roof.
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The disadvantage of using putty tape in an RV application is that it dries out more quickly than butyl tape.
#Buttle tape install#
Any time you install trim metal, a new roof access ladder, and just about anywhere else you will penetrate the outside surface of your rig, you will need this gunk on a roll.
It is a sticky material used on surfaces between windows and sidewalls, roof vents and roofs, and anywhere else where a seal tape moisture gasket is required to seal out the water. Putty tape is pretty much what it sounds like it would be, simply putty formed in a rolled "tape" configuration.
any application where a metal or plastic flange of a component is being screwed down onto a roof or sidewall on your motorhome or travel trailer. RV Do-it-yourselfers use butyl and putty tapes to seal the underside of flanges on roof vents, windows, drip caps, etc.
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