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Posted by Pat on October 19, 2006, 2:52 pm
john@vieth.info wrote:
> Thanks fellas! I figured I was just being a nervous Nelly.
>
> > In general, though, this isn't the only house that has been open w/
> > rains and that's been true for "since forever" and you can't tell which
> > ones of all the houses around are the ones that were/weren't can you?
>
> Ah! Good point. A little bit of logic always helps. If raining on a
> construction was so bad, I would have (1) heard about horror stories in
> the past and (2) heard anecdotes about certain houses. "Oh, yeah,
> that's Old Man Jone's place! Yeah, that's a shame! Cost half a mil to
> build, and now his floors are like roller coasters because it rained
> before he could get his roof on." Nope. Never heard a story like
> that. I think I'm safe. :-)
>
> - John
I heard it causes an attack of ladybugs.
>
> dpb wrote:
> > john@vieth.info wrote:
> > > My builder sayd he applies Thompson's Water Seal to the floor decks in
> > > case there is rain prior to roofing. Does that help? It occurred to
> > > me it might make it worse. If he applies it to the walking surface,
> > > water could shed off the surface and into the cracks where it soaks
> > > into the sides of the OSB boards. Once in the sides, the boards may
> > > not dry out properly if the Thompson's product actually holds the water
> > > *IN* as well as out. What do you think? Or am I just being a worry
> > > wart?
> > >
> > > Also, I have free access to axial air movers (fans) and portable
> > > dehumidifiers used in the water damage restoration industry. Would it
> > > help to run those after the roof is up? As for the dehumidifiers, they
> > > would not help until the roof, windows, doors, and siding are up. A
> > > guy told me it would do no good because, this time of year, the fans
> > > would just be blowing damp air over a damp surface, but it seems to
> > > work in the restoration industry, so why not?
> >
> > Yes, you're being a worry wart! :) Yes, if it rains before it's
> > covered, water _will_ get in the joints between underlayment (and
> > everywhere else, as well) -- it's just a hazard of construction. The
> > Thompson's will, overall, probably help some as it will tend to help
> > runoff and surface absorption (and there's a whole lot more exposed
> > surface than edges). It isn't a real impervious sealant, but mostly
> > works as a "anti-surfactant" to promote beading and runoff/shedding.
> > Water will evaporate back out, perhaps slightly slower than without it,
> > but you almost certainly will have quite a bit less to get out than if
> > wasn't sealed first. The most useful thing one can do is to sweep all
> > standing water off as soon as possible after the rain to get the drying
> > process started asap.
> >
> > As for fans, they will help speed up the proces at least some even if
> > the humidity is relatively high because they move the air and promote
> > evaporation. Unless it has been thoroughly soaked and you're not
> > having any warm, sunny days, however, I don't think I'd be overly
> > concerned about it until after it is enclosed, then you do want to try
> > to dry it out so that by the time the rest of the framing and interior
> > work is done it is thoroughly dry before flooring.
> >
> > In general, though, this isn't the only house that has been open w/
> > rains and that's been true for "since forever" and you can't tell which
> > ones of all the houses around are the ones that were/weren't can you?
> > I'd only get concerned if this is going on for months or cold weather
> > sets in w/ frozen precip in place you can't get rid of and aren't going
> > to be able to do so for quite some time kind of scenarios, not just a
> > rainy day (or even week).
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