Can I Patch My RV Roof Top Membrane Instead Of Replacing It

Question:

I have a 2014 full body paint cardinal RL3850 39 I have roof damage at the rear air unit that I need to repair. The rest of the roof appears to be ok. Is it possible / advisable to replace the membrane from just in front of the bad spot, to the rear aprox. 8 and create a seam, with the existing membrame overlapping 6-10inch over the new membrame? Or do I have to replace the entire roof with one peice?

asked by: Richard R

Expert Reply:

After speaking with out expert install team I would NOT recommend patching or replacing only part of the membrane. It will just set you up for future leaks and other problems where the seam will be. Since you will have to remove the trim around the unit to fix it anyway, it would be wise to just replace all of it.

I'd rather do the job once and not have to redo it again for a long time.

If you need to purchase a new membrane kit we have the Alpha Systems Superflex TPO RV Roof Membrane - White - 40' x 9-1/2' # AL42CV.

And here is a kit to help you install it. Alpha Systems RV Roof Replacement Installation Kit for Roofs Over 26' - White # AL74UV

expert reply by: David B