Replica 2109cc Engine Swap

@dlearl476 posted:

Me, I’d be worried about building a house full of mold, but what do I know?

A house built in wet/winter weather will normally be no more than a month or so between when it's closed up (roof, windows, doors and outside sheathing on- what we call at 'lock-up' here) and when the heat goes on.  Even if it was roofed and sheathed in the pouring rain, everything usually dries out pretty quickly, and if there is a lot of water to deal with there are propane 'jet' heaters you can put in the house for a few days to get the majority of the moisture out.  Once all the interior walls are framed, all the trades (electrical, heat, plumbing, and ???) have done their rough-ins have passed inspection, if it's still cold/wet the furnace can be installed so it's now heated and then drywall (I think you guys call it sheetrock) can start.  Mold takes way longer to grow than a few weeks, so it's never an issue.

I'm a painter in the construction industry and we've done I couldn't begin to count how many new houses in late fall/winter/early spring over the years.  Al

There's a giant difference between being wood being soaked (even all the way through), but then drying out, and wood that gets wet every time it rains. By far, the worst thing you can do is to trap moisture under plastic, where no air moves and no light penetrates.

The main concern is in sheet-goods (OSB) swelling or the dimensional lumber warping (generally before it's framed into something). Most custom builders use "dry-deck" 200 day exposure-rated OSB for sub-floors - but as Alan noted, the edges can still cup and require a lot of sanding if pushed. Non-exterior grade plywood delaminates when wet and can't be saved.

Getting a building "dried in" is a race against nature.