Coating a TPO (vinyl) Roof

I'd look into rhino lining et.al myself.
bumpy

Bumpyroad wrote:
I'd look into rhino lining et.al myself.
bumpy

Thanks. So it looks like that product is just a few years old. Have you used it? It says it can keep the RV "up to 20 degrees cooler."

Does it have to be professionally applied, since it's a spray on?

Also, any idea of cost?

Rhino Lining RV Roof

Hengs is what I used and it does not need a primer before using it on a TPO roof like Liquid Roof does.

NMDriver2 wrote:
Hengs is what I used and it does not need a primer before using it on a TPO roof like Liquid Roof does.

Oh that's interesting - Proguard advertises their "Liquid Roof" as the only liquid rubber product . . . hmmm

How long ago did you do your roof?

TeryT wrote:

Bumpyroad wrote:
I'd look into rhino lining et.al myself.
bumpy

Thanks. So it looks like that product is just a few years old. Have you used it? It says it can keep the RV "up to 20 degrees cooler."

Does it have to be professionally applied, since it's a spray on?

Also, any idea of cost?

Rhino Lining RV Roof

I haven't used it but do a search, lots of previous discussion.
makes a permanent fix, not a band aid.
bumpy

Bumpyroad wrote:

TeryT wrote:

Bumpyroad wrote:
I'd look into rhino lining et.al myself.
bumpy

Thanks. So it looks like that product is just a few years old. Have you used it? It says it can keep the RV "up to 20 degrees cooler."

Does it have to be professionally applied, since it's a spray on?

Also, any idea of cost?

Rhino Lining RV Roof

I haven't used it but do a search, lots of previous discussion.
makes a permanent fix, not a band aid.
bumpy

A previous quote said this about Rhino:

ktmrfs wrote:
myself and several others have put rhino/linex etc. over plywood decking in toyhaulers and cargo trailers. We all have mixed feeling on it. Unlike in a truck bed, adhesion is not a strong point. while it's almost impossible to get these off a scuffed up metal base, over plywood adhesion is marginal. if it starts to come loose at an edge it is not hard at all to pull it off by hand. Thats after the installers claimed they have specific directions from rhino/linex etc. on how to install over plywood and it will stick as well as a truck bed.

yes it makes a good floor coating, easy to clean, great for toyhaulers, etc. but we all have to be careful about adhesion issues.

In all the cases it seemed to adhere real well for a few years, then after temp cycling, vibration etc. lifting at the corners

Found on this page

I would recoat it with your choice of the liquid roof coatings, this will protect what is left of the good roof you currently have.
It is easy to apply with a paint roller, just clean the roof well.
Your seams and those from roof to siding need attention every year or two, re-caulk those (though not caulk, use the specific camper product for that).

I have an aluminum roof with small holes, and used the Eternabond tape on the holes and coated it twice with the liquid. Looks great and no leaks.

A new roof on an old camper sounds like a bad idea money-wise. Extend the life with the coating, and maybe the roof outlives the camper.

does LIne-x have better adhesion? what surface preparation is done/needed?
bumpy

So here are the products I've heard about so far here and on other threads, and basic comments:

APPLIED BY PROS
Rhino Liner - Pricey, not great adhesion over non-metal & flexible surfaces (as reported by one person on another thread & others)

FlexArmor - Pricey, lasts 10-15 years & lifetime leak guarantee

Latex Elastomeric types DIY
Hengs - one source says OK over TPO, another says no. May need a recoat 3-4 years in desert

Elastomeric (Henry 287, 687, et. al.) - recoat every 4-5 years. Actually not recommended for RV roofs (but some have used it for that)!

Solvent Based DIY
Inland Coatings RC-2000 Found this on the web - ANYONE USED? (one person on another thread recommended this) Says good for TPO and all RV roofs and without primer. 15 year guarantee

Silicone (e.g., Henry's 887 Tropi-Cool) - ANYONE USED THIS ON AN RV? Henry says it's 887 can do RV roofs including TPO. I wonder how this is to walk on or to repair (will anything other than silicone stick to it for repairs, like Eternabond Tape). . .?

Superior RV Liquid Rubber - Good for TPO with no primer.
Someone in another thread recommended this product. Appears to be like Inland Coatings and perhaps also LiquidRoof. 15 year guarantee

LiquidRoof - must use primer over TPO (product also requires catalyst). Looks like about 5 year longevity before a recoat is probably needed. (Moderator Extraordinaire Barney gives a real nice report of applying this product in the 2nd thread linked here!)

Some other good threads on this topic:
One recent RV roof thread

In-depth RV roof recoat thread started in 2011

TeryT wrote:

FlexArmor - Sprayed on by pros, costly, lasts 10-15 years & lifetime leak guarantee

how does this differ from rhino/linex?
bumpy