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Old 09-25-2015, 02:45 PM   #1
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Repairing soft floor, need some advice.

This summer the floor in front of our door of the Aerolite started getting soft...I took a bunch of stuff apart and I'm starting repairs and I have a few questions...for reference it looks like the attached pics, or, you can check out this short youtube vid https://youtu.be/x1q1M_qqBqc

A few questions:
- Is the 1/4" plywood normally glued to the foam in the floor or is it just laid on it?
- How does the step get it's strength? It seems that the 2x4 is just laid in there and doesn't lie across any frame members? Is it just glued to the plywood top and bottom and that's what supposed to support it?
- What do you use to glue the new plywood onto the foam in the floor? Construction adhesive or something else?

Thanks to any help you can lend,
Tony
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Old 09-27-2015, 03:38 AM   #2
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there is special glue that is spraded to both sides unit needs come apart to repair
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Old 09-27-2015, 02:42 PM   #3
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Tony,

Those are composite floors where everything is glued together to provide strength. I haven't dealt with this particular one. However based on previous experience with similar panels, you have to offset and glue things back together to maintain the structural integrity. It can be done, but is not as simple as a regular floor replacement (if those are simple) There may also be a certain size that needs to be done to maintain structural integrity.

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Old 10-08-2015, 07:54 PM   #4
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If it were me, I wouldn't attempt to duplicate the composite floor. I would put floor joists in and plywood on top. Then insulate between the floor joists.
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Old 10-09-2015, 02:09 AM   #5
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Quote:
Originally Posted by nickthehunter View Post
If it were me, I wouldn't attempt to duplicate the composite floor. I would put floor joists in and plywood on top. Then insulate between the floor joists.
That's exactly what I would do as well.

I doubt that you would be able to match the exact thickness if you tried to duplicate the composite floor.
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Old 02-03-2021, 09:41 PM   #6
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Help please!

Quote:
Originally Posted by nickthehunter View Post
If it were me, I wouldn't attempt to duplicate the composite floor. I would put floor joists in and plywood on top. Then insulate between the floor joists.
Iím going to try to repair my floors myself and planned to put joists in instead of trying to do the composite floors but canít seem to find any instructions as to how I would put the joists in. Do you have any advice or know of any sites that have information on it?
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Old 02-06-2021, 05:33 AM   #7
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Just remember it’s not a (sticks and bricks). I would measure the distance, and depth you have available. Then get some square aluminum tubing and use that for the “joists”. It will be lighter then wood, stronger, lighter, and never rot.
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Old 11-09-2022, 03:55 PM   #8
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Quote:
Originally Posted by TonySe View Post
This summer the floor in front of our door of the Aerolite started getting soft...I took a bunch of stuff apart and I'm starting repairs and I have a few questions...for reference it looks like the attached pics, or, you can check out this short youtube vid https://youtu.be/x1q1M_qqBqc

A few questions:
- Is the 1/4" plywood normally glued to the foam in the floor or is it just laid on it?
- How does the step get it's strength? It seems that the 2x4 is just laid in there and doesn't lie across any frame members? Is it just glued to the plywood top and bottom and that's what supposed to support it?
- What do you use to glue the new plywood onto the foam in the floor? Construction adhesive or something else?

Thanks to any help you can lend,
Tony
Did you discover where the water was coming in and were you ever able to resolve this, Tony?
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Old 11-09-2022, 07:57 PM   #9
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Quote:
Originally Posted by Damselisdistressed View Post
I’m going to try to repair my floors myself and planned to put joists in instead of trying to do the composite floors but can’t seem to find any instructions as to how I would put the joists in. Do you have any advice or know of any sites that have information on it?
Your "joists" are metal and the run the width of your RV.. Try putting them between the joists, you can utilize aluminum with pop rivets or you can go to get some of the galvanized metals used for construction of walls and use that.
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