Thread Tools Search this Thread Display Modes
Old 10-09-2013, 05:49 AM   #1
2 Rivet Member
1962 24' Tradewind
St. Petersburg , Florida
Join Date: Mar 2012
Posts: 40
Subfloor Repair Advice please for a newbie

I friends, I am a new Airstream owner (62 Trade Wind). Over the weekend we removed the front gaucho for easier new flooring installation in the next week or so. I was vacuuming along the front wall (where a window or the seams above the rain guard) have been leaking and a small section of the floor collapsed down just by the vacuum tip touching it. It just crumbled. I then took my screwdriver to gently tap to find out how big a soft area I had. It is probably 6-8" wide by a foot or so, from the left wall curve along the front wall. Looks like this has gone undetected for years. I cut away the crumbly stuff and now have a hole exposing the belly pan. What is the best way to patch this?
Additionally, I have a very soft and springy area in front of the fridge area that I am not thrilled with leaving in that condition. It was suggested that I use bondo on the low spots and then seal the area (I am thinking of doing the entire exposed subfloor) with a marine grade paint or epoxy sealer in the attempt to waterproof or add at least a barrier for water to reach the original subfloor.
Any advice is appreciated...
Thank you,
Mary Claire in Sunny St. Petersburg, FL

Mary Burris is offline   Reply With Quote
Old 10-09-2013, 07:01 AM   #2
Rivet Master
Belegedhel's Avatar
1973 21' Globetrotter
Houston , Texas
Join Date: Sep 2009
Posts: 1,904
Start by checking your entire floor for rotten spots. Around the door, under and and behind the refrigerator, and all along the perimeter are the usual places the floor will rot. This will help you to decide whether you are looking at patching small areas, replacing entire sheets, or doing the entire floor. If you get lucky and only have a few small sections as you describe above, they can be patched.

To patch a small section, saw out a square section where you are back to solid floor, then install a piece of wood along each edge of the hole 3" or so wide underneath the existing floor so that it extends into your missing section by about 1.5". This becomes the "shelf" that will support your patch. Fix it in place with glue and screws. This is the technique that is described in the older Airstream maintenance manuals. I know there are plenty of folks who have stabilized rotting sections using some form of epoxy--I don't have a lot of confidence.

The "springy" area you describe might be rotty floor that is getting soft. It may also by a symptom of bigger troubles, ie., you may have a cross member underneath that has let loose on one side and is allowing the floor to move. Look for a row of screws in the subfloor indicating a cross member is underneath. If the floor is moving right over a cross member, then you may have some frame repair work to do as well.

good luck!

Belegedhel is offline   Reply With Quote
Old 10-28-2013, 05:29 PM   #3
4 Rivet Member
2006 19' Safari SE
Hayes , Virginia
Join Date: Dec 2011
Posts: 333
rotting floor

I signed on to the form this evening to report the same thing and I see you have already answered. I know the answer wasn't addressed to me but the information will do us both some good. On mine, I cut a 12x12" hole in the floor just inside the door, to the right, noticing the subfloor is about 3" above the aluminum shell. A thin insulation (aluminum backed) covering affixed on the underside of the plywood floor. Something that puzzles me is where the water is coming from. The rotting is between the top floor tile and plywood, working its way down through. I cannot see any indication of anything leaking. I have also spent a lot of time caulking in hopes to alleviate this problem, but I guess I missed something. Something I would like to know is with all the sweating inside, could that possibly be the culprit. The reason I ask is, the screws I have taken out of the wood on the inside are rusted, which indicates moisture.....

Another thing, I laid the tile less than a year ago and did not notice any problems. As far as I can tell there is no way for water to flow between the tile and plywood, indicating to me, the entire subfloor is getting wet. I would be very grateful for any suggestions.
mocus is offline   Reply With Quote
Old 10-28-2013, 07:17 PM   #4
Rivet Master
SuperTrouper's Avatar

2008 27' International CCD FB
Petaluma , California
Join Date: May 2011
Posts: 553
Images: 5
Search the forums for a thread called "Rotten floor due to water leak!" My particular tale of woe starts on page 17 in mid February of 2013. Lots of pictures but the thread mostly pertains to newer trailers. Sorry I couldn't cut and paste the link but my IPAD does not offer the utility of my Safari web browser. Brad
SuperTrouper is offline   Reply With Quote
Old 10-28-2013, 07:31 PM   #5
Rivet Master
TG Twinkie's Avatar
1974 Argosy 26
Morrill , Nebraska
Join Date: Nov 2009
Posts: 4,676
Images: 2
Blog Entries: 5
It could be the door frame, the door gasket or seams above the area. Does the door close tight all the way around?
Knowledge: "A gift to be shared. A treasure to receive."
TG Twinkie is online now   Reply With Quote
Old 10-28-2013, 07:40 PM   #6
Rivet Master
65CV's Avatar
1959 26' Overlander
Western , Massachusetts
Join Date: Sep 2005
Posts: 1,360
Images: 6
Stop the leaks right away!
If you're not sure how, have your local dealer pressure test.
65CV is offline   Reply With Quote
Old 10-28-2013, 08:23 PM   #7
4 Rivet Member
2006 19' Safari SE
Hayes , Virginia
Join Date: Dec 2011
Posts: 333
Rotting Floor

Checked door and she is closing fine. Like I say, the dampness goes beyond 2 feet of the door wall, primarily just to the right of the door, 12", extending under the couch about 8". I'm a good distance from an AS dealer, but will check the closest. I just cannot understand how the water comes in, traveling between the tiles and floor, without the tile coming up. Tile adhesive still bounding very well. And another thing, we have only been in the rain once on our trips and I keep the trailer under my carport.

Eight or 9 months ago, I did detect a leak in the dry tank configuration and took the couch out, repaired leak, took up the vinyl, and put down vinyl squares. The floor around the tank was damp, and that was only place there was any evidence of leaking.

I have read somewhere on this forum individuals using some sort of dampness detector. I believe I will also look in that direction. Thank all of ya very much.

mocus is offline   Reply With Quote

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Virginia Campgrounds

Reviews provided by

Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities

Copyright 2002-2015 Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 07:38 PM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, Jelsoft Enterprises Ltd.

Airstream is a registered trademark of Airstream Inc. All rights reserved. Airstream trademark used under license to Social Knowledge LLC.