I heard that pressure treated wood and aluminum are not compatible is blue board the same (used in mold renovations) . Instead of staples used for framing an old trailer would pocket holes be better ? Is there a electrical book recommended for rewiring a trailer ?
Pocket holes are a favorite here, do a search for Kregg jig or pocket holes and you should find a couple of threads.
There has also been a discussion about treated wood and aluminum. There's a thread about that also, I will try to find it for you. Modern treated wood is supposed to be compatible with aluminum but check the manufacturer's page. I have links listed in the thread. I think I'm the only one who used treated wood and I used it only for my skirting.
Consider that article is Canadian and I don't see a date. I looked up the manufacturer's page and specs for the specific wood I used.
I did notice that and thank you for pointing that out, because I see where I forgot too. I did like how it talked about the copper that is added to the wood and from my understanding, it's the copper that reacts with the aluminum. I'm sure the here in the states and especially in California, there's a lot more regulation to what is added to the wood. Best just to stay away all together or put a barrier between the wood and metal.
I don't see that it would be much of problem, because we wrap the trailer in house wrap, after it's insulated with hard foam. Not much wood is in direct contact with the aluminum skin.
I would not use it for a different reason. I like to use Titebond glue on everything. The framing "is glued", "and pocket screwed" together, then it's glued to the paneling to form a ridged structure. I would question how well the treated wood would accept glue to the none treated wood. I just don't see it as a major advantage, it's much more important to spend time, trying to keep the water out!
A real disadvantage to using treated wood is it's moisture content when you buy it. You really won't know how it's going to react when it dries, many months down the road. But if you buy a piece of treated 1x and let it sit for a few months in the garage,it's going to display some pretty interesting non-flat non-square shapes. It's also going to shrink. Beyond that, treated lumber is made from fast growing immature trees; check out how big the growth rings are on that pile of big box treated stuff. You really want that in a project you'll spend 'blood, sweat, and tears' over (take it soup, music always drives the point home).
Some clear pine or poplar will last as long or longer than what they all used new, and especially because we are waterproofing our rebuilds so much better than the original makers... right gang?