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Open Roads Forum  >  Do It Yourself Modifications and Upgrades (DIY)

 > Roof Coating - Finally applied bedliner to my roof & pics

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Golden_HVAC

Fulltime, CA, USA

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Posted: 04/19/11 11:32pm Link  |  Quote  |  Print  |  Notify Moderator

Hi,

I have been talking about applying white bedliner to my roof for the past year or so, and collecting opinions of what to use, how it worked, ect. Even talked with a couple of people who had Rino Liner installed on their roof. White color is optional, and takes about 2 weeks to arrive. Cost for Rino Liner installed is around $3,000 - $4,250. Part of the high cost involves washing the old roof well, and having to remove the A/C covers, and roof vents. Masking anything that you don't want coated with the rino liner, and getting it into a huge spray booth with proper ventilation. It is a 3 day process too.

I decided to use Herculiner, do it yourself roll on white bedliner material. As the time got closer, and I started to collect the required equipment, I chickened out - two weekends in a row! Herculiner is rubber pellets disolved in Xyelene, and like acetone, will disolve normal govles, so special ones from Graingers that will last 16 hours when exposed to Acetone or Xyelene where ordered, along with a chemical carbon gas respirator. Chemical resistant coveralls and some other painting supplys from Home Depot (blue masking tape, .7 mil plastic to protect the sides of the RV, extra paint brushes, and metal paint stir for a drill to keep the rubber in suspension in the chemicals). These extra where about $150 in supplies.

Acetone is nothing to play around with, neither is Xyelene. Here is the website for Herculiner. I ordered white bedliner.

http://www.herculiner.com/product_info.html

My 14 year old rubber roof had almost all the white parts of the EPDM roof flake off, leaving behind large black areas, that all the white came off when scrubbed with some TSP soap. Instructions call for cleaning with TSP (Tri Sodioum Phosphate) a mild and great soap, then clean with acetone, then wait for that to evaperate, and apply the bed liner material.

The installation went really well. My fears where not founded, and it applied well, thick, and I was able to pour some material directly on the roof, move it around with a paint brush, then direct it over the side, to the masking tape line, and get it even and to the edge that I wanted, without any going down the side of the RV onto the plastic.

I put extra material around each solar panel mount, and covered those extra well. And also coated well around each roof vent, and the shower skylight. The skylight had been leaking, and there had been places where the old roof had shrunk, and hairline cracks up to 1/8" wide where in places.

I really should have done this 2-3 years ago, when the roof was in much better shape.

My friend did a similar roof repair, yet he used something else. His was much easier to apply, and took about 3 gallons to complete his 30' fifth wheel. It is also a bright white finish, and looks like it will last for years. Probably a lot thicker than the original roofing, and should be quiet in the rain, as well as better insulation, and no white streaks.

http://www.epdmcoatings.com/rv_roof_repair.html

By using a two part roof material, he has a roof that will not disolve in the rain. I had put a single part product on my old camper roof back in 1995, and it did disolve in the rain after sitting in Washington for a few years. It was a white roof coating sold by Home Depot at that time. Don't recall the brand name though.

So I wanted to use something a little harder, and I think the bedliner coating will be difficult to cut with a knife! All I need to do now is get 3 more gallons of the stuff, and apply it to the roof. The first gallon covered an area about 4' x 12' long, and around most of my roof vents, skylights, and solar panel mounts. Now I just have to cover the rest of the roof. It should go well, and take about 40 minutes per gallon, not including time to wash the roof, and relocate the solar panels.

IF I had known about the EPDM coating, and it does not require a chemical mask to install it, I might have used that. Yet I had already ordered the bedliner material, and I have my heart set on that super tough bedliner material now.

For those with white streaks on the RV sidewall, and wanting to get rid of them, the EPDM coating in the link above will not cause white streaks! For that, it is worth it. It would have been great to install the EPDM coating when my RV was only 8 - 9 years old, when the roof was still in great condition, because it makes the roof totally 1 peice, with no seams anymore. The same coating covers all the joints, right to the side of the roof vent, or to a certain part of the skylight. You protect the area you don't want coated with masking tape, and remove the masking tape while the product is still not fully cured, so it will come off cleanly.

Yet the EPDM coating is going to be slippery when wet. Not a problem for my friend, who does not get on his RV roof (until that plant was growing out of the roof material). With my solar panels, I wanted something a little more non-slip, and the Herculiner is non-slip, should be very quiet in the rain, and very durable.

And no more white streaks - Priiceless!

Fred.

* This post was edited 05/22/11 09:11am by Golden_HVAC *

Bumpyroad

Virginia

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Posted: 04/20/11 04:24am Link  |  Quote  |  Print  |  Notify Moderator

great, keep us posted.
bumpy





SWD

Land of Living Skies

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Posted: 04/20/11 05:26am Link  |  Quote  |  Print  |  Notify Moderator

Pics please!

frank-2

Ontario

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Posted: 04/20/11 06:14am Link  |  Quote  |  Print  |  Notify Moderator

I have read about this many times there are many different thoughts on this some say the bed liner materials will not flex so it cracks other say it works just fine so this is going to be something I keep my eye good luck and keep us informed.

shum02

Burlington ON CDA

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Posted: 04/20/11 06:20am Link  |  Quote  |  Print  |  Notify Moderator

frank-2 wrote:

I have read about this many times there are many different thoughts on this some say the bed liner materials will not flex so it cracks other say it works just fine so this is going to be something I keep my eye good luck and keep us informed.



Every pickup truck bed flexes to a certain degree and obviously some more than others so it better!


Pics please!


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Tumbleweeds

Southeast AL

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Posted: 04/20/11 06:29pm Link  |  Quote  |  Print  |  Notify Moderator

Fred,
Just wondering, if the chemicals dissolve rubber gloves, does it dissolve the rubber roof?
Tom

Golden_HVAC

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Posted: 04/20/11 07:34pm Link  |  Quote  |  Print  |  Notify Moderator

Tumbleweeds wrote:

Fred,
Just wondering, if the chemicals dissolve rubber gloves, does it dissolve the rubber roof?
Tom


Hi,

I was getting concerned about that too! No it did not disolve the rubber roof to the point that it started to soak into the roof material. But it sure bonded well.

I was on the roof tonight, putting back the Maxx Air covers, and looking at the part that is coated with bedliner material. It is bonded very well, I still have some odor when I opened it up today, and turned on the 3 Fantastic fans, that cleared the air in a few minutes.

I tested part of the rubber roof material with acetone, and it did not disolve that, yet it will make the original EPDM soft.

Once I finish coating the roof with 3 more gallons, then I will probably take some pictures. Overall I am very happy with it now, and I am not worried about it cracking while driving. Probably will stand up to trees much better than the roof itself, and will be much less likely to tear on a branch scraping the roof.

Fred.

sonicsix

Jerry n' Cynthia

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Posted: 04/21/11 11:27am Link  |  Quote  |  Print  |  Notify Moderator

Pictures, bro... pictures!





toolchest

FL

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Posted: 04/21/11 02:02pm Link  |  Quote  |  Print  |  Notify Moderator

I wish I would have known about that before I ruined my Hi-Lo!!! Pics would be nice.

MuddyPaws1

A State

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Posted: 04/21/11 06:22pm Link  |  Quote  |  Print  |  Notify Moderator

Well, the only issue I have with Herc is that it is not UV safe. It turns chalky and degrades in UV light. A UV top coat is available for it.

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