gluing ply to ply (caravan floor)

[zongatron]

Hi guys,

So im gluing ply to ply on my caravan floor (existing floor is crappy ply with some water damage and old black color from old carpet underlay or something) and will fasten down with a few screws....
Question - Will stud adhesive do the job? I have a big tub going to waste in the shed...
I also have a new tin of bondcrete for ply (would prefer to leave unopened if stud adhesive would be reliable
And lastly do you think liquid nails would be the best as said by my friendly local hardware man?

I like the bondcrete + screws.what do you guys reckon?
Thanks for any input
ben

[specialist]

I would use the liquid nails and screws just to keep it in place until the nails went off.

[weisyboy]

we used I like the bondcrete + screws on our boat floor. it worked just fine. i am dreading the day that we need to pull up the floor for repairs i think it will be a saw job

[Wild Dingo]

WAIT A MINUTE HERE!!

Your going to try to stick down new ply over crappy ply that has mould? :doh: ... mate just rip the sodding old crappy ply up and lay new ply down why the blazes would you stick good ply to crap?? doesnt make sence :roll: just rip the old stuff out and measure cut seal with bondcrete and stick it down with the liquid nails and be done :2tsup: One perfectly good new floor

Im no expert here but Id say if you were to go ahead and stick the new stuff over the mouldy stuff your gonna have some seriass issues not long after

[Bob38S]

WAIT A MINUTE HERE!!

Your going to try to stick down new ply over crappy ply that has mould? :doh: ... mate just rip the sodding old crappy ply up and lay new ply down why the blazes would you stick good ply to crap?? doesnt make sence :roll: just rip the old stuff out and measure cut seal with bondcrete and stick it down with the liquid nails and be done :2tsup: One perfectly good new floor

Im no expert here but Id say if you were to go ahead and stick the new stuff over the mouldy stuff your gonna have some seriass issues not long after


Got to agree with Ding here - doesn't make sense - unless -

- is this going to be some cheap fix up so that it can be sold and then become some other poor sucker's problem?

Mate,

if it's the first one - do like Ding says

If it's the second one - you wouldn't really want to know what I think - do the right thing - remember every dog has its day and it will come back to you.

[zongatron]

Hi guys
Thanks for the input.
And haha no not doing a, budgie reno -> flog off job.
Its my mothers new very old caravan. Its just basically a shell and must have been built in late 60's or 70's so a roughie job aint no big deal.
But about ripping the floor up - I considered that but felt i didnt have enugh nouse when it comes to caravans. Under the van seems to have some tin sheeting and then ply on top of that in the interior. i aint so sure how they have fixed it and to what ( if they riveted into the steel frame of the van or if it just sits on top glued to the thin tin) The tin/aluminium underneath is for waterproofing i assume like a normal trailer floor.
I figured i would get myself intpo trouble pulling and scraping trying to get the old ply off and then would probably need to fix a thicker sheet than the 7mm i am going with. And would be unsure how to fix it and wouldnt want to start trying to screw tech screws in not knowing how thick the members are.... etc.
I also just thought that the stud adhesive will be too thick leaving gaps beneath the floor.
Will probably give the bondcrete a go and if it doesnt seem to hold will use liquid nails.
Thanks again

[WillyInBris]

Hi fella,

I did the same thing some 7-8 years ago, first you need find and fix the leak that has caused the problem over the years to start with, then if you not going to remove the floor (I didn't) you will need to kill the mold the best you can.

I used some watered down exit mold, let it dry out for a week or so then gave it a good sand removed most of the crappy bits then used as what has been mentioned above, Bond Creat to hold what was left together then liquid nailed and screwed the ply down to that.

It came up a treat, then had to cover it with lino :C at the wifes request.
I also gave the bottom a paint with some thick roofing black stuff that I had at my work at the time, sorry cant remember the name of it but it looked good and worked well, you should be able to get some type of auto sealer for that.

Sorry I don't have any pics, I sold it about two years later and the floor was still going strong then.

Have fun I did.