Keep using Eternabond until entire roof is covered?

[solismaris]

I like Eternabond and have been gradually replacing caulked seams with it. Now, after 15 years the rubber roof itself is starting to go; the white is wearing off in places and the black shows through.

They make Eternabond in 12" widths and even wider. How about I cover those spots with wide Eternabond strips? And as the roof continues to age, cover those new spots, etc., until eventually the entire roof may be covered with overlapping Eternabond?

Advantage: I can do it gradually, and it is within my skill level. Replacing the entire roof is a huge job, lots of upfront cost, and I would probably screw it up.

[chuckbear]

minnow wrote:
Will that Hengs adhere to Eternabond ?

If you buy the correct one. Chuck

[minnow]

Will that Hengs adhere to Eternabond ?

[beemerphile1]

ScottG wrote:

beemerphile1 wrote:

solismaris wrote:
...after 15 years the rubber roof itself is starting to go; the white is wearing off in places and the black shows through....

Purely cosmetic, you don't have to do anything with it.

While the white is cosmetic, it keeps the UV off the black rubber that would otherwise break it down very quickly.
So it is important to keep something over the black part.

I retired from commercial building management. There are millions of commercial roofs using the same EPDM roofing that RVs are using. The white layer is purely cosmetic.

[chuckbear]

We recoated ours 4 years ago and it is just fine. I agree with others that this is your best and easiest option. Probably the least expensive also. Chuck

[pianotuna]

Having used the 4 foot wide EternaBond I was surprised that it was not too difficult to apply.

[ScottG]

beemerphile1 wrote:

solismaris wrote:
...after 15 years the rubber roof itself is starting to go; the white is wearing off in places and the black shows through....

Purely cosmetic, you don't have to do anything with it.

While the white is cosmetic, it keeps the UV off the black rubber that would otherwise break it down very quickly.
So it is important to keep something over the black part.

[solismaris]

noteven wrote:

pianotuna wrote:
EternaBond can be ordered in a roll that is four feet wide.

piano - why do I see the person stuck to the roof like flypaper...? :B

Yeah. A piece that big would be hard to manage. And mistakes could be very costly!
But that suggests to me that the the manufacturers may well intend it to be used for large jobs, possibly including a complete roof recover.

[noteven]

pianotuna wrote:
EternaBond can be ordered in a roll that is four feet wide.

piano - why do I see the person stuck to the roof like flypaper...? :B

[beemerphile1]

solismaris wrote:
...after 15 years the rubber roof itself is starting to go; the white is wearing off in places and the black shows through....

Purely cosmetic, you don't have to do anything with it.

[Lwiddis]

Like gbopp, I suggest using Heng’s.

[Gjac]

If you look at a cross section of an EPDM roof it has a very thin top layer of white, the substrate is black. The white top coat will slough off do to sun and rain showing the black substrate. 15 years is not old for an EPDM roof, I would not replace it unless there was severe damage. Coating it will return the white color and make it cooler inside and protect it for another 10 years before it wears off. My roof is 23 years old, I coated it with just one coat of acrylic coating in 2007 and it is wearing off. When it all wears off I may coat it again. The roof has never leaked.

[TurnThePage]

agesilaus wrote:

gbopp wrote:
Clean the roof and coat it with something like Heng's Rubber Roof Coating.

I restored the roof on our 1996 Southwind. After applying Eternabond to the seams and roof edges, it took 2 1/2 gallons of Heng's to coat 30' of roof with two light coats. It's easy to apply and does not need a primer.

Ditto on the Hengs. Probably not a permanent fix but good for several years anyway. I used it on our old fiver, it went on easily after I cleaned the roof. I think I used 2 gallons on a 35 ft fiver and that was for two coats. You get a nice smooth white finish no brush or roller marks.

X3

[pianotuna]

EternaBond can be ordered in a roll that is four feet wide.

[agesilaus]

gbopp wrote:
Clean the roof and coat it with something like Heng's Rubber Roof Coating.

I restored the roof on our 1996 Southwind. After applying Eternabond to the seams and roof edges, it took 2 1/2 gallons of Heng's to coat 30' of roof with two light coats. It's easy to apply and does not need a primer.

Ditto on the Hengs. Probably not a permanent fix but good for several years anyway. I used it on our old fiver, it went on easily after I cleaned the roof. I think I used 2 gallons on a 35 ft fiver and that was for two coats. You get a nice smooth white finish no brush or roller marks.