Coroplast underbelly replacement

[parkerhw]

I have a 2017 Montana that I bought new. After a few months I notice something hanging down above the sewer drain. I crawled under my unit and discovered the coroplast had been cut and pulled down for some type repair. I don’t know if this was done at the dealership or factory. Who ever it was just tried taping it back. The tape will only last a shot time before giving way. Any ideas on how to fix this so it will last?

[Ford350man]

I had a similar issue when I bought our preowned Montana. I fixed it although not pretty, but who was going to see it. I inserted an oversizepiece of sheet metal above the coroplast then drilled several self tapping screws thru the coraplast into the sheetmetal. A little tricky getting started nut it worked. Then I used Gorilla Tape over the cracks to seal. Maybe someone else has done something easier on this forum, but this has worked well for me.

[rohrmann]

Originally Posted by parkerhw

I have a 2017 Montana that I bought new. After a few months I notice something hanging down above the sewer drain. I crawled under my unit and discovered the coroplast had been cut and pulled down for some type repair. I don’t know if this was done at the dealership or factory. Who ever it was just tried taping it back. The tape will only last a shot time before giving way. Any ideas on how to fix this so it will last?

Gorilla tape is a better option, and will last a very long time.

[beeje]

Gorilla tape has been on mine for years with no signs of letting go. I also added sheet metal to screw it back together.