rubber roof, several good products to fix/repair.. PVC not so much.
Silicone not so good to fix. even silicone will not stick long to silicone.
as the other person said.. the persons building.. not so much on what was used.
Best of Luck with your search.
mine has a track system.. an its 11 years old... works well..
I do not like cables... cables has pulley's and they can jump off
2012 Ford F 250,"XL" 6.2L Gas, 2 wheel drive. 147,000 miles
2005 Coachmen 29FKCS, Front Kitchen... 2005 Honda VTX1800F
N.E. Ohio in the Spring, Summer, Autumn.