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Old 05-03-2015, 02:07 PM   #1
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Roof on 23b

Picked up a 00 23b end of season last yr. uncovered today and was looking at the roof. It seems to be a full length rubber piece. I'm sure nothing has been done with the roof in years. My question....is it a rubber roof? I am going to pull up the old caulk on the front, back and anywhere else I see it. I'm going to use Entrabond tape on all the edges but can you recommend something to roll over the entire roof to make sure any little pin prick type holes are sealed? I'm also going to pull the A/C cover and replace that seal, is the bathroom vent seal or caulk? Any other tips you may have would be greatly appreciated!
Thanks
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Old 05-03-2015, 06:36 PM   #2
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It's important to use the right product based on the type of rubber roof you have. Do some search here in JOF about different membrane types. Dicor is frequently referenced as a preferred product for replacing the joints where roof meets walls.
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Old 05-03-2015, 08:01 PM   #3
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Thank you! I will in JOF
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Old 05-03-2015, 08:17 PM   #4
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I would also contact Jayco directly and ask them the type of material used on your model year HTT (have your VIN handy).

Around the time frame of your 2000 HTT Jayco used both TPO (thermo plastic) and EPDM (rubber) roofing materials.

Bob
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Old 05-04-2015, 12:16 PM   #5
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Ok I checked with Jayco, they said I have the EPDM roof and can not and do not recommend me sealing the entire roof with anything. UGHHH How can I be sure there are no pin prick type holes in the roof. Thinking of sending one of the kids in at night with a 1 million watt light and have them shine it all over the ceiling LOL.
They also said they only recommend the Dicor self leveling caulk for the perimeter. Their just foolin right? I can use E'bond tape with no issues? I'm going to be re-caulking the entire trailer, sides, lights, windows, etc...I'm not a real patient gal, so I'm looking for a easy, yet reliable seal on the roof.
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Old 05-06-2015, 07:58 AM   #6
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Quote:
Originally Posted by Kennedy64 View Post
Ok I checked with Jayco, they said I have the EPDM roof and can not and do not recommend me sealing the entire roof with anything. UGHHH How can I be sure there are no pin prick type holes in the roof...
I've been trying to tell people not to seal their EPDM roof.

If there is no obvious physical damage your EPDM roof is fine. Scrub it with Spic and Span and inspect. I'm certain it will be fine though.

From another thread.

Quote:
Originally Posted by VicS1950 View Post
Assuming you have an EPDM roof...

This is the link/source of the selected info.

Material Questions | EPDM Roofing Association

You can scroll down there to read all the information.

********************************

4. HOW CAN THE PERFORMANCE OF EPDM BE GAUGED OVER THE LAST 40 YEARS?
With over 1 billion square feet of membrane installed worldwide, EPDM has established itself as the membrane for all climatic conditions. This is supported by various laboratory studies and actual field installations. This excellent track record is the result of unique and unmatched physical characteristics:
* EPDM has superior resistance to UV (ultraviolet) radiation
* EPDM has unmatched resistance to thermal shock
* EPDM exhibits superior resistance to cyclic fatigue
* EPDM has superior resistance to hail damage
* EPDM will not become brittle and will not shatter due to low temperature flexibility

8. WHAT IS THE DIFFERENCE BETWEEN BLACK EPDM AND WHITE EPDM MEMBRANE?
In addition to the oils and the polymers used to make an EPDM membrane, another ingredient is added to the mix to enhance UV resistance. In the case of a black membrane, carbon black is added, which converts UV rays into heat. With white membrane, in lieu of carbon black, titanium dioxide is typically used to reflect UV rays and prevent it from attacking the polymer.

10. DOES EPDM REQUIRE SYSTEMATIC MAINTENANCE OR ADDITIONAL COATINGS OR TREATMENT TO ACHIEVE ITS LIFE EXPECTANCY?
No. No special coating or other surface treatment is required. General maintenance in the form of good housekeeping should periodically be performed to remove debris and leaves and to investigate the performance of other components.

11. IS THE PERFORMANCE OF THE EPDM MEMBRANE ADVERSELY AFFECTED GEOGRAPHICALLY DUE TO TEMPERATURE EXTREMES?
In laboratory testing EPDM is subject to the most severe heat aging where samples are subjected to temperatures of 240 F for 4 weeks. Also, in several studies field samples were collected from various geographic locations after years of exposure and in both cases (laboratory and field), the physical properties of the samples exceeded the original ASTM specification. Presently, there are numerous EPDM installations throughout colder regions in the U.S. (i.e., Alaska, Minnesota) as well as in the hot and humid climates of southern Florida and Texas. For the past 25 years, EPDM has been the roofing membrane of choice for many commercial and manufacturing facilities internationally. The material will not shatter in extreme, cold temperatures and remains flexible under severe thermal shock such as in dessert areas where evenings are extremely cold and days extremely hot.

13. IS EPDM UV RESISTANT?
After more than two decades of field exposure in different climatic conditions, samples collected of EPDM membrane show no evidence of crazing or cracking. As a result of the excellent UV resistance, EPDM membrane can be warranted up to 30 years.

15. WHAT IS THE EXPECTED LONGEVITY OF EPDM MEMBRANE?
With many EPDM installations exceeding 40 years of exposure in the field under various climatic conditions, none of the material tested has shown alarming signs of degradation. Even though it would be difficult to predict, studies have shown aged EPDM membrane as having a potential life expectancy of 50 years.
****************************
Regular inspection and repair is necessary as seals and fastenings may deteriorate. A Travel Trailer TT isn't likely to outlive the 40 year service life of an EPDM roof.

Please do not coat your roof based upon your personal layman perception of what your trailer roof should look like. Listen to the experts.

Properly matched Dicor products are highly regarded for touch-up and seal repairs. Eternabond tape is another favorite.

vic
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Old 05-06-2015, 08:10 AM   #7
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You will be just fine using Dicor and/or EternaBond products, and as far as "pin prick type holes" if you don't have any signs of moisture damage I wouldn't worry about them even being present.

The 23B has a flat roof (not pitched), and water has a tendency to pool around the roof A/C, confirm that the A/C gasket is keeping moisture from entering the HTT ceiling.

Bob
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Old 05-06-2015, 09:26 AM   #8
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It rained most of yesterday, I went into the TT and pressed all around the A/C and vents, all seems "stiff". I haven't been up on the roof yet, just from the side with a ladder, everywhere I pressed down also seemed firm. I'm hoping today I can get up there with the mop and bucket and wash it up and see what it looks like. This weekend, hubby said he'd help pull the A/C so we can replace that seal.
I'm probably being super paranoid, the trailer is 15 yrs old and I (we) are the type of people that keep everything until it is done. My last truck was a '00 Silverado that had 400,000 miles on it when I sold it to daughter and son-in-law.
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Old 05-06-2015, 11:01 AM   #9
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Quote:
Originally Posted by Kennedy64 View Post
snip...... This weekend, hubby said he'd help pull the A/C so we can replace that seal.....snip
Depending on model/style of A/C, removing the A/C plastic cover from the interior ceiling will allow enough access to view the A/C seal area....., you can also check that the four (4) A/C mounting bolts/nuts are "snug" from this interior vantage point as well (NOTE: Tightening these bolts to tight will compromise the effectiveness of the A/C seal).

Bob
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Old 05-06-2015, 11:10 AM   #10
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okay I have a 95 with the EPMD roof and it does have some worn spots on the membrane where ive seen it leak before ,..went to the trailer place and they gave me a gallon of rubber roof coating made for the Epdm roofs ....ummm
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