Reply
 
Thread Tools Display Modes
Old 07-14-2013, 08:27 PM   #1
Member
 
Join Date: Aug 2011
Posts: 32
Spongy Floor

Hey all..

After five years it seems that the floor is getting soft in a few spots along the stove / refrigerator area. Does anyone know what way the floor joists run underneath. I snaked an inspection camera around and did not see any indications of water or water damage. Just wondering if anyone else has had the issue.
__________________

__________________
2008 Rockwood 8318
GMC 3500 Crew Cab Dually Diesel
Equalizer Hitch
KDEL1970 is offline   Reply With Quote
Old 07-14-2013, 08:29 PM   #2
Member
 
Join Date: Aug 2011
Posts: 32
Spongy Floor

Damn keyboard
__________________

__________________
2008 Rockwood 8318
GMC 3500 Crew Cab Dually Diesel
Equalizer Hitch
KDEL1970 is offline   Reply With Quote
Old 07-14-2013, 08:56 PM   #3
Senior Member
 
Join Date: Jul 2012
Posts: 1,258
I believe the floor joists run the length of the camper, rather than crossways.
There is only a thin layer of "plywood" over the joists and styrofoam, so is easy to crush it over time. The styrofoam is firm at first, but repeated loads from foot traffic eventually crush it, and then the thin plywood just caves in.
Seems to be a common problem, and why we never wear shoes in or lightweight. It has the same floor construction, although I think the "plywood" is a little bit thicker. I am not sure what year they made that change.
This is one of the sacrifices one makes when buying a lightweight camper, although it is getting more common as the manufacturer looks for ways to cut costs.
__________________
bakken is offline   Reply With Quote
Old 07-14-2013, 09:03 PM   #4
Member
 
Join Date: Aug 2011
Posts: 32
Thanks! I have been thinking of dropping the underbelly and reinforcing the floor. I have a signature ultralight and never even thought of the thin materials. I was assuming the joists ran across the short side.
__________________
2008 Rockwood 8318
GMC 3500 Crew Cab Dually Diesel
Equalizer Hitch
KDEL1970 is offline   Reply With Quote
Old 07-14-2013, 09:11 PM   #5
Camper Less Camping
 
Cajun Po-Boy's Avatar
 
Join Date: Apr 2012
Location: NW
Posts: 3,642
I almost bought a lightweight with our previous truck setup...happy I didn't as I read more stories about the same floor issues your having, ashame you have to do any structural work on your RV...good luck
__________________
2013 Sabre 32RCTS-6 (sold)
Family of 4 whose always on the GEAUX!
Cajun Po-Boy is offline   Reply With Quote
Old 07-14-2013, 09:12 PM   #6
Senior Member
 
Join Date: Jul 2012
Posts: 1,258
I think your floor is the same as mine, so you cannot do anything from underneath. The floor is a sandwich of plywood (thin), styrofoam and aluminum joists, then another layer of thin plywood. They spray glue all over everything, then put it in a press until dry.
It seems the only solution when this structure starts to sag is to put a layer of laminate flooring over top of the vinyl, and preferably across the joists. I don't know of anything else that would take the load off the soft spots.
__________________
bakken is offline   Reply With Quote
Old 01-29-2014, 10:37 AM   #7
Junior Member
 
FandD Marshall's Avatar
 
Join Date: May 2013
Posts: 5
2014 Surveyor Sport 240, I've developed a spongy floor, in front of Kitchen by the bathroom door, any ideas ?
__________________
FandD Marshall is offline   Reply With Quote
Old 01-29-2014, 10:52 AM   #8
Senior Member
 
Join Date: Jan 2014
Location: West Carrollton, Ohio
Posts: 473
I have a 2010 Sierra 355QBQ fifth wheel and the floor in front of the kitchen sink has been spongy since we bought it new. No access from underneath it is covered. I'm not sure how to or if i even want to tackle it. My camper isn't even a light weight. I would welcome suggestions or ideas as well.
__________________
OKI Marine is offline   Reply With Quote
Old 02-01-2014, 10:36 PM   #9
Member
 
Join Date: Aug 2011
Posts: 32
Spongy Floor

Hopefully the weather will let up soon, and I will be dropping the underbelly. We are going out in April and I want to look into it beforehand. I will let you know how it goes. I don't know if I want to mess with the new laminate floor route or not. Does anyone know what the subfloor looks like from the topside? Is the Styrofoam on top or sandwiched between the luan plywood? This seems to be becoming a more commonplace problem.
__________________
2008 Rockwood 8318
GMC 3500 Crew Cab Dually Diesel
Equalizer Hitch
KDEL1970 is offline   Reply With Quote
Old 02-01-2014, 11:55 PM   #10
Senior Member
 
Join Date: Jul 2010
Location: Waynesville
Posts: 12,031
Quote:
Originally Posted by KDEL1970 View Post
Hopefully the weather will let up soon, and I will be dropping the underbelly. We are going out in April and I want to look into it beforehand. I will let you know how it goes. I don't know if I want to mess with the new laminate floor route or not. Does anyone know what the subfloor looks like from the topside? Is the Styrofoam on top or sandwiched between the luan plywood? This seems to be becoming a more commonplace problem.
Here is what it looks like,cut out for the shower trap?? Youroo!!
Attached Thumbnails
Click image for larger version

Name:	004.jpg
Views:	143
Size:	53.9 KB
ID:	45694   Click image for larger version

Name:	DSCF2196.jpg
Views:	108
Size:	51.5 KB
ID:	45695   Click image for larger version

Name:	DSCF2198.jpg
Views:	122
Size:	51.7 KB
ID:	45696  
__________________

__________________
youroo is offline   Reply With Quote
Reply

Thread Tools
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




ForestRiverForums.com is not in any way associated with Forest River, Inc. or its associated RV manufacturing divisions.


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 01:49 AM.