mike-s wrote:
beemerphile1 wrote:
The vinyl/plastic of a TPO membrane isn't supposed to deteriorate like EPDM (rubber).
No one claimed it did. But just because it deteriorates differently doesn't mean it doesn't deteriorate. Nothing is forever. I couldn't find the Alpha warranty, but Dicor's Diflex II TPO has a 12 year warranty (material only, doesn't cover any consequential damage), so the OP's 12 year refresh seems reasonable.
You are correct, i did want to refresh the membrane. I called Jayco when I got the RV to confirm the type of roof and manufacturer. They confirmed it was an Alpha TPO roof and that it had a 12 year warranty. But only to the original owner...... Not me.... So that is why I wanted to put the coating on