Are you sure it's the roof? ... Does it leak only when it's out? (extended) .... Do the seals look even open and closed? ... Do you see it leaking from the ceiling or down a wall or just the floor gets wet??? Most slides have EPDM rubber roofs but some new models have a different material. With the slide half way open you should be able to see the roof from inside the trailer. (might need a step stool) Let us have a little more info maybe someone can help you. JM2˘, Hank ........... Welcome to the forum.
... if still under warranty let a dealer do it so it is not voided by what you do. If it is EPDM the material is warranted for 10 to 12 years.
Hank & Lynn
2007 Cougar 290RKS, E-Z Flex, 16" XPS RIBs ( SOLD
.. Gonna miss her ... looking for new 5r)
2004.5 Dodge 2500 QC, LB, 5.9HO, WestTach gauges, Ride-Rite