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Subject Topic: Delamination disaster Post Reply Post New Topic
PersonFirstClassMale
06/4/2016 at 7:22pm
 Location: Aberdeen
 Outfit: Vango Tahoe 300 View FirstClassMale's Profile View Profile   Reply to FirstClassMale Reply   Quote FirstClassMale Quote  
Joined: 10/6/2003

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I bought a cheap caravan with the intent to do it up, so naively thought that the couple of bits of spongy floor would not be an issue. It had a faulty skylight above one of the areas, so I thought I could just cut out the plywood and graft in new.

I got the van home and cut out a good section of the floor right. I did wonder why it was so difficult to remove the plywood. Only after that, did I find out why and about delamination and how I should have left the ply well alone; drilling and applying resin instead.

Can I treat the exposed insulation, then put new ply over it? My idea was, that I'd graft back in new thin ply, before putting thicker ply across the whole floor area, adding a little more weight but improving rigidity across the floor.

Any thoughts would be appreciated.


Personalan126
06/4/2016 at 8:45pm
 Location: West Scotland
 Outfit: Fleetwood Garland and Almera View alan126's Profile View Profile   Reply to alan126 Reply   Quote alan126 Quote  
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lay in the ply loose (you can drill it for the dowels 1st if you like) then lay in place with a good dollop of adhesive, inject the resin, tap in dowels and weight down. TBH if the top layer of ply was dodgy then you wont have done that much damage. dont use expanding foam

see how it is after the resin has cured, you shouldnt need a layer of ply on top

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My E-mail

knockhill marshal and proud


Personsennen26
06/4/2016 at 9:16pm
 Location: Lincs
 Outfit: Skoda Yeti and Coach View sennen26's Profile View Profile   Reply to sennen26 Reply   Quote sennen26 Quote  
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Best way to treat Delamination is to leave it alone we have 2 lots of Delamination and hav e done nothing about , in the end you forget that they are there. On our last van we had some for 11 years did not make any differnce to the vam, andf its a l;ot less hassel.


Sennen


PersonFirstClassMale
10/4/2016 at 3:00pm
 Location: Aberdeen
 Outfit: Vango Tahoe 300 View FirstClassMale's Profile View Profile   Reply to FirstClassMale Reply   Quote FirstClassMale Quote  
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Thanks for the replies and advice. I take it that part of the process of putting in the resin, bonds the underside of the top (new) ply to the insulation?

The concern I have, is that the exposed insulation has a very definite crack - actually it's more of a crevasse, which I'd like to rectify before putting new ply back on. When carefully standing near it, either side of the crack moves independently.

Rather than doing the drilling and dowelling, I wondered if it might not be easier and more effective, to screed the resin over the insulation; allowing it to seep to the bottom layer of ply, before applying the precut new top ply.


Personalan126
11/4/2016 at 2:27pm
 Location: West Scotland
 Outfit: Fleetwood Garland and Almera View alan126's Profile View Profile   Reply to alan126 Reply   Quote alan126 Quote  
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the wooden dowels add strength, okay dont drill out the new ply but put in some blocks of 2" by 2" or whatever the metric equivalent is, screed with resin, lay new ply on top and weight down

as for leaving delamination alone, just dont, the glue fails and with the bouncy bouncing it will get a lot worse. it is a pain of a job but needs must

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My E-mail

knockhill marshal and proud


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PersonBattie
12/4/2016 at 8:27pm
 Location: SHROPSHIRE
 Outfit: Avondale argente 530 5 View Battie's Profile View Profile   Reply to Battie Reply   Quote Battie Quote  
Joined: 16/6/2008

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If you use one part resin then dont use dowels. They prevent the proper expansion of the resin so therefore it wont bond as well.

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LB Caravan Services
Mobile service and repairs
07902012609 / 01948662374



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