Roof/Luan concerns(?)

[S. Heisley]

I'd wait a little while but you don't have to wait days. If the weather is good, you could touch it up in the morning; go mow the lawn and do your weekend chores (or take a nap); and then add the Fill-it before dinner or maybe even before lunch. You may even be able to add the Fill-it sooner. The instructions say you can apply the Fill-it as soon as the CPES is dry to the touch.

Depending on how much CPES and Fill-it you actually use, it would probably be safe to roll the trailer back into the garage after dinner to finish curing. The smell will tell you; but the Fill-it does not seem to be as bad as the CPES. Don't forget to fill the cracks where the plywood is joined, too. That includes where outside walls join each other; where the walls meet the roof, etc.

Remember that if you use the paint thinner or Saran Wrap trick that I mentioned earlier in this thread, you'll have less sanding to do after it dries.

I think your trailer is going to be just fine.

[wannabefree]

Interesting problem. See if you can slip a knife under the split edges. If you can, the outer ply is delaminating. It will probably continue to do that no matter what you do. If you plan to skin with aluminum that will hide the issue. If not, skin it over with a better grade of ply. If not a delamination problem fill any cracks that show up and move on.

[S. Heisley]

Wannabefree wrote:

...the outer ply is delaminating. It will probably continue to do that no matter what you do.

I've coated plywood with CPES, allowed it to dry, and then left a wet rag on it overnight and for more than 12 hours with no ill effects. In contrast, just leaving a wet paper towel on untreated plywood for less than 20 minutes has caused that to delaminate. As long as he has properly treated even minutely exposed areas with the CPES and follows up with a UV protection (his final painting), I think he'll be okay. Anyway, his alternative is to add more plywood to his roof. That, he could do anytime.

[Chuckles2153]

The thing about wood wether it be manufactured or not is it has a mind and will of its own. When I buy lumber and ply i always let it set for at least a day in my shop to acclimate to its new suroundings. You can buy a pc. of ply from your local hrdwr. store that's straight as an arrow, Take it home and within 24 hrs. it's not going to be straight anymore, It's because no 2 places are the same in temperature and humidity.
Even when i buy rough lumber i always plane and cut it bigger than needed, Let it set then cut it to the size needed.
As for bending ply i usually start the bends in small increments to avoid major cracking on the formost radius.
Hope this little bit of info helps out and this is just the way i do it, I'm sure there are other ways of dealing with it and would love to read about them.
Chuck.