Bondebond - The only water I ever see on the inside in under the door seal. It isnt a real tight fit I guess. I probably should work on that. I dont see any water there when the trailer is closed up but when we camp I will catch a few drops there. even if we have the awning up haha...
I came up with a bunch of two-foot carpet squares from work and scrounged up all of the solid blues and solids greens they had. That all went down on the floors and under the beds. Really looks nice... My interior is decor wit blue curtains and seats cushions. Lots of blue... The carpet sure takes away the cold floor in the morning but the down side is it sure tracks in a lot of small leaves from outside haha... I have to stomp real good before coming in now.
We got up one morning after a hugh rain storm all night and my awning had a hugh collection of water in it - couldnt even open the door for the bulge. ALso we had setup in a somewhat drain area and there was almost a foot of water flowing by. I didn know if we gonna make it or not haha... All the water finally went away. Its fun sometimes camping way back off the trail. No telling how many gallons of water was trapped in the awning drooping down. I guess I didnt have enough dropped down on one side that time...
I really like my OFF-ROAD POPUP. It looks real good behind my truck too... Everyone that sees it wants to come over and look at it. All the hunters want one real bad.. Especially those Arkansas hunters... I made several trips up and down US82 going from here to Wichita Falls TX in my working years... Usually spent the night at COlumbus MS or Greenville MS depending which way we was traveling. Got good friends at Lewisville AR so always stopped there for awhile too..
Then the first thing we get when we get into Texarkana area is a Texas Whataburger... We dont get that here in VA.... Hmmmm good...
My Posts are IMHO based on my experiences - PM me Roy and Carolyn
RETIRED DOAF/DON/DOD/CONTR RADIO TECH (42yrs)
K9PHT (Since 1957) 146.52M
2010 F150, 5.4,3:73 Gears,SCab
2008 Starcraft 14RT EU2000i GEN
2005 Flagstaff 8528RESS
My first pop-up (Jayco) had sprayed on an undercoating like you describe. The current unit (Fleetwood) does not have any added coating to, but it comes with wording like "25-year warranty", not that I could make good on that since Fleetwood is out of business. And the warranty statement is actually from Weyerhaeuser anyway.
I am tempted to it with some undercoating, but am going to wait until I see signs of it not looking as "pristine" as it is now. It's a 2006 model.
I inquired about undercoating when looking at new units several years ago. The Fleetwood dealer said that you don't want to spray any coating on the underside because it can trap moisture in the wood which could result in damage. Another dealer (can't remember which brand) said the same thing. I've not noticed any problems with the OSB on mine so far and it's been through some major downpours. Of course, the only time the underside should be getting much moisture on it is when towing in the rain so the net exposure is probably fairly minimal.
2004 Toyota Tundra SR5 (V8, 4WD, TP, TRD)
2005 Fleetwod Allegance with axle flip
Honeywell 2000i Generator
Me, DW, DS, DD, Dog & Camping Kitty
Agreed, and I had heard word-of-mouth of such, since I didn't buy directly from a dealer. I think I will only do so when the sub-flooring starts to show signs of rot or decay. Then, at best, it's a bandaid. My intention is to have this PUP until I can't.
This kind of OSB does shed water pretty well on the FACE. However, it will tend to wick more on the exposed "end grain" so I make sure those are covered, and any holes drilled through by the mfgr or myself get a shot of caulk. As is appropriate, the exterior metal cover wraps all the way under to cover the end grain.
I also tend to think that the recommendation to or not to is totally dependent on which manufacturer you're talking about - but that's only me talking. My Jayco was covered with it. That doesn't mean it was the same class of OSB, though.
If it looks like OSB it's a type called Structure wood. It is designed for outdoor use; and yes you do not undercoat it. You can't get everywhere with the undercoating. Like on top of the frame. The Key is to allow it to dry and not trap moisture on/in it.
What you see on Jayco's and others with the black coating is a permaible coating that allow the Structure wood to dry after it gets wet.
And as an FYI a lot of floor failures come from parking a camper over grass or bare dirt. The ground moisture can keep the flooring wet over long periods and that's exactly what you don't want. Same with covering a PU with a cover that extends below the floor level or to the ground.
With a pup, for some reason or another, you have to be careful how you store it or you get water running in under the door and it will rot out in the doorway. Happened to the friend of mine that bought my 1990 Aliner from me in 2003. He had the door side sitting high with a tarp over it. Because of the roof vents, the tarp made a nice little pitched roof that made a lot of water drain down the side, right down the door to the bottom of the door where it came in. It only took a couple of years for the floor to rot out by the door.