best way to recover a roof

How long do you want the refurbished roof to last?

If you are just trying to get an extra 2-3 yrs out of it, paint on products can be a good option but they are very much buying time not a long term solution.

If you are looking at another 15-20yrs, probably best to do it right and rip off the old rubber and put down new.

udidwht wrote:
Wonder if anyone out there has ever sprayed their roof with something like Line-X?

Not first hand experiance, but I do know that a few Hunters have done that on their OLD junky Deer Lease trailers and motorhomes, which are not worth enough to put on a new roof. Doug

Wonder if anyone out there has ever sprayed their roof with something like Line-X?

ktmrfs wrote:

dougrainer wrote:

pianotuna wrote:
Gdetrailer,

Is your roof flat? Mine is curved. I like the aluminum idea.

dougrainer,

Redecking sounds expensive. But I do value your advice.

Well, You CANNOT install EPDM or TPO over the existing EPDM/TPO. You CANNOT install new EPDM/TPO over the existing wood subdeck after you remove the OLD EPDM/TPO. You HAVE to redeck. You overlay the new decking with Wood Glue/screws. Doug

Never heard of needing new decking for a new roof, nor have I ever seen any shops put on new decking unless the old was rotted. Nor have I ever seen this requirement in the instructions from EPDM roof suppliers either.

Where is a reference to needing new decking??

When you remove the old EPDM/TPO, you have gobs of old glue and debris stuck to the Old Decking. NEW glue will not adhere correctly to the old glue. Unless you sand the complete roof, (messy dirty and time consuming), and IF you use the original gummed up surface and apply new glue, once you roll out the EPDM/TPO you will have ALL those bits and pieces under the new rubber. IT WILL show thru. Will look like s**t. Now, I only have 43 years of replacing roofs on RV's, so maybe you have more knowledge. Installing new deck over the old only takes about 2 to 3 hours and you now have a NEW/CLEAN/DRY surface to glue and roll out the new rubber. This is not done because the old deck was rotten or bad. You do it because you want a GOOD clean adhered job. Now, what may be stated in the instructions assumes you KNOW what you are doing. I DO. Maybe the shops you have used are just plain lousy and don't care about quality. BUT TO DO A CORRECT ROOF EPDM/TPO REPLACEMENT REQUIRES NEW OVERLAYED DECKING. PERIOD. Doug

ktmrfs wrote:

dougrainer wrote:

pianotuna wrote:
Gdetrailer,

Is your roof flat? Mine is curved. I like the aluminum idea.

dougrainer,

Redecking sounds expensive. But I do value your advice.

Well, You CANNOT install EPDM or TPO over the existing EPDM/TPO. You CANNOT install new EPDM/TPO over the existing wood subdeck after you remove the OLD EPDM/TPO. You HAVE to redeck. You overlay the new decking with Wood Glue/screws. Doug

Never heard of needing new decking for a new roof, nor have I ever seen any shops put on new decking unless the old was rotted. Nor have I ever seen this requirement in the instructions from EPDM roof suppliers either.

Where is a reference to needing new decking??

. Xs2. I am redoing a trailer as we speak and there is nothing wrong with the decking. You just need to be sure everything is clean and prepped properly before installing new membrane! Where did you get your info???

dougrainer wrote:

pianotuna wrote:
Gdetrailer,

Is your roof flat? Mine is curved. I like the aluminum idea.

dougrainer,

Redecking sounds expensive. But I do value your advice.

Well, You CANNOT install EPDM or TPO over the existing EPDM/TPO. You CANNOT install new EPDM/TPO over the existing wood subdeck after you remove the OLD EPDM/TPO. You HAVE to redeck. You overlay the new decking with Wood Glue/screws. Doug

Never heard of needing new decking for a new roof, nor have I ever seen any shops put on new decking unless the old was rotted. Nor have I ever seen this requirement in the instructions from EPDM roof suppliers either.

Where is a reference to needing new decking??

pianotuna wrote:
Hi,

The RV is from 2004. What is the best way to recover the roof. It is some sort of flexible material.

Bed liner over what is there?

New material?

Remove old material and use bed liner?

I won't be doing this myself.

How bad is your roof? What issues are you having? Is it leaking, or does it just look old?

Not sure if it is beyond this simple life-extending idea, but I have used Dicor Roof sealant on 3 of my RVs. It goes on like thick paint. Filled up cracking old dicor around vents/etc nicely. Total cost was about $250 and a few hours of my time. Important to clean the roof beforehand obviously, but that wasn't hard either. My roof was about 7 years old when I did it. It probably didn't need it, but I figure giving my roof extra protection/life is a good idea since water leaks is one of the biggest killers of RVs. Here's a link to the project I did: https://www.rv.net/forum/index.cfm/fuseaction/thread/tid/30201452.cfm

Any pics of your roof?

Slownsy wrote:
Gdetrailer so what you are saying is that it is a waste of time painting anything as it will not stick and wash off. I hope you didn’t pay for paint on your vehicle or your home. Yes there is prosesses for applications of most coatings and everything has a limited lifespan but maintenance do extend this.
Frank.

Reading through his posts it sounds like he threw down some FRP, an interior product meant to be applied to interior walls with no UV inhibitors, over an existing roof composed of who knows what. When that band aid failed he tried painting over it with some unknown roof paint, probably not intended to be applied to FRP, then that sheet the bed. Then he scraped or ground that mess off, and applied bed coating, which was not meant for a roof application either. About the only things he did not give a shot was asphalt roof shingles, standing seam steel, or some miracle product endorsed by Phil Swift. He created his own disaster.

I found the RV Armor pricing estimate. Since I'm 28'5" it would be $4785 USD IF the deck needs no repairs. I.E. Roughly $165.00/Linear Foot. $3,950 Minimum Job Total.. Plus I'd have to drive to USA.

Gdetrailer so what you are saying is that it is a waste of time painting anything as it will not stick and wash off. I hope you didn’t pay for paint on your vehicle or your home. Yes there is prosesses for applications of most coatings and everything has a limited lifespan but maintenance do extend this.
Frank.