Forum Discussion

rickdavis81's avatar
rickdavis81
Explorer
Jun 03, 2016

Roof questions

I purchased my first 5th wheel this past fall. I found this spring, before I've even had the chance to use it, that I had a leak on the roof and some water damage. I'm planning on replacing the entire rubber roof and repairing the soft spot. My question is I see 40 and 60 mil edpm. Sounds like industry standard is 40 mil from what I've read. Any reason to use the 60 or will the 40 be fine?

3 Replies

  • RVcircus's avatar
    RVcircus
    Explorer II
    Jun 03, 2016
    rickdavis81 wrote:
    Is an online supplier ok to use?


    I ordered mine through Amazon and got a great deal. I paid $295 for 25' of Dicor branded TPO with Prime shipping and had it in 2 days. The same thing is now $475 on Amazon with free (nor Prime) shipping. I'd shop around locally, but don't rule out an online deal.
  • westend's avatar
    westend
    Explorer
    Jun 03, 2016
    Buy your EPDM from a roofing supplier. Follow their recommendations for installation.
    Most residential and commercial installers in my area will use 60 mil. The RV repairers like to use 40 mil and charge more for it.

About DIY Maintenance

RV projects you can tackle on your own with a few friendly pointers.4,395 PostsLatest Activity: Nov 08, 2025