So, I was thinking about getting one of those el-cheapo metal storage
sheds at work. Reviews indicate that the supplied floor kit is utter
crap, so I figured I'd build myself one using pressure-treated wood with
joists on 12" centres and it'll most likely outlast the shed.
Except of course that metal - beyond stainless steel and hot-dipped
galvanized - in contact with PT wood isn't a good idea. So... is there
standard practice for providing a barrier between the two?
I did see mention of using 10-mil poly sheet, but the only stuff I've
seen so far is only 6-mil, and on a big, expensive roll, when all I'd
need would ~50 feet of 2" wide strips.
I do have a big roll of roofing felt kicking around in the warehouse, so
maybe that will work? I'm not particularly concerned myself and probably
all sorts of things would do, but I know that at least one of the shed
vendors states that having their shed in direct contact with PT wood will
void the warranty, so I want to do things such that they wouldn't deny
any potential claim made for other reasons based on what they decided was
an insufficient barrier material.