How To Identify What Type Of Roof Membrane Material Is Used On Your Motorhome

Published 09/09/2021

Products Featured in This Question

Alpha Systems Patch Kit for SuperFlex RV Roof Membranes - White - 3' x 2'

(44)

$66.62

Camco RV Vent Installation Kit - Rubber Roofs or Sidewalls - White Butyl Tape

(149)

$12.21

Question:

How do I identify my roof type? It is a 2010 Forest river Lexington Class C Ford e450. Thanks HH

asked by: Harold H

Helpful Expert Reply:

One way to identify the roof material type without removing it from your roof is to go to your vent fan and remove the inside trim cover. Manufacturers will typically pull it down and staple it to the vent opening. You can remove a staple or two if needed to lift it up and examine both sides. if one side is a different color than the other then it's EPDM and if both sides are the same color it is TPO.

Another way to check is to remove the trim strip on the outside of your RV where the roof meets the sidewalls and you can pull up the roofing membrane there to check what type of material it is. This method may require you to replace the butyl tape # CAM25013 to reinstall the trim.

If you're needing to patch a section of the your 2010 Forest River Lexington Motorhome roof then the Alpha Systems Patch Kit for SuperFlex RV Roof Membranes # AL37CV you were looking at will patch a TPO membrane roof and the Camco Pro-Tech Patch Kit for RVs w/ Rubber Roofs # CAM41461 will patch an EPDM membrane roof.

I've attached our help guide article that will assist you in identifying your roof material type.

expert reply by: Kevin C