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Open Roads Forum  >  Fifth-Wheels

 > Waterproofing the 1/8" thick exposed plywood

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RobWNY

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Posted: 06/25/20 05:43pm Link  |  Quote  |  Print  |  Notify Moderator

Flex Seal turned out great! All exposed wood is now sealed.


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MFL

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Posted: 06/25/20 06:25pm Link  |  Quote  |  Print  |  Notify Moderator

Good to hear, congrats on a job well done.

When mine was new, I worked on it a little, most every day. My neighbors said they thought I bought a NEW one, so I wouldn't have to be fixing things. I replied, it is new, that is why I am working on it! [emoticon] Many don't realize, it's not the same as getting a new car or truck.

Jerry





RobWNY

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Posted: 06/26/20 06:59am Link  |  Quote  |  Print  |  Notify Moderator

Jerry, Ain't that the truth! So far on this "brand New" RV that I haven't used yet, I've had to repair seam tape, corner molding, had the ladder replaced because it was damaged when we bought it, a Schwintek motor quit after putting the slide in/out 5 times and the sealing of the exposed wood. I'm sure I'm not done yet. I just haven't discovered the rest of what's not right yet. LOL

GDS-3950BH

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Posted: 06/26/20 09:08am Link  |  Quote  |  Print  |  Notify Moderator

Crawl Under and take a really good look for exposed bottom edges of the 1/8" Luan that is the substrate behind the filon on the sidewalls, especially in the wheelwells. Our Grand Design Solitude started to delam above the fender skirts. It was the water from the tires hitting a raw edge and wicking up into the plywood like a sponge. Out of warranty so piss off according to GD. $60K POS.

RobWNY

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Posted: 06/26/20 11:47am Link  |  Quote  |  Print  |  Notify Moderator

GDS-3950BH wrote:

Crawl Under and take a really good look for exposed bottom edges of the 1/8" Luan that is the substrate behind the filon on the sidewalls, especially in the wheelwells. Our Grand Design Solitude started to delam above the fender skirts. It was the water from the tires hitting a raw edge and wicking up into the plywood like a sponge. Out of warranty so piss off according to GD. $60K POS.

Thanks for the tip on where else to check. I'll do that!

Thermoguy

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Posted: 06/26/20 12:46pm Link  |  Quote  |  Print  |  Notify Moderator

I had to remove my propane tank on my 2006 5th Wheel yesterday. Same idea, open to the outside air underneath. I see the exact same setup that you have in your picture. However, after 14 years, it looks exactly the same, no rot, no degradation to the material. Not sure, but it sounds like you are fixing a problem that doesn't exist.

Huntindog

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Posted: 06/26/20 01:32pm Link  |  Quote  |  Print  |  Notify Moderator

Thermoguy wrote:

I had to remove my propane tank on my 2006 5th Wheel yesterday. Same idea, open to the outside air underneath. I see the exact same setup that you have in your picture. However, after 14 years, it looks exactly the same, no rot, no degradation to the material. Not sure, but it sounds like you are fixing a problem that doesn't exist.
Depends on how often one tows in nasty weather.

I'd wager most here are fair weather campers.

I am not. Just about always I am going somewhere on a specific date for a reason. And we just take whatever mother nature thows at us in stride... In fact when I am hunting I love nasty weather. It sends most everyone else home.
Hunting is great with less people in the woods.

I will look my new Momentum 398 over closely when it arrives.



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Retired JSO

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Posted: 06/26/20 02:32pm Link  |  Quote  |  Print  |  Notify Moderator

It will be fine. After several years towing the same fifth wheel, I have to clean the area of dust, spiders, and wasp. Never had any sign of water/spray entering that area.





RobWNY

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Posted: 06/26/20 03:04pm Link  |  Quote  |  Print  |  Notify Moderator

Whether it needed to be done or not, it was an hour job. Being retired, I have a lot of free time.

Thermoguy

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Posted: 06/26/20 03:08pm Link  |  Quote  |  Print  |  Notify Moderator

Huntindog wrote:

Thermoguy wrote:

I had to remove my propane tank on my 2006 5th Wheel yesterday. Same idea, open to the outside air underneath. I see the exact same setup that you have in your picture. However, after 14 years, it looks exactly the same, no rot, no degradation to the material. Not sure, but it sounds like you are fixing a problem that doesn't exist.
Depends on how often one tows in nasty weather.

I'd wager most here are fair weather campers.

I am not. Just about always I am going somewhere on a specific date for a reason. And we just take whatever mother nature thows at us in stride... In fact when I am hunting I love nasty weather. It sends most everyone else home.
Hunting is great with less people in the woods.

I will look my new Momentum 398 over closely when it arrives.


I live in WA....

Just saying, can't get away from wet weather at some point. And, mine is 14 years old...

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