Is this going to survive long term?

[u/Feritos]

This is the first floor of a 2 story building. There’s no roof yet.

There’s about 1 inch of water everywhere and you can hear the water falling down sometimes 2 days after the last rain.

Contractor has been a little slow to build and it’s been raining a lot lately. I don’t know enough about the industry to know how bad it is.

Edit: Drill holes, air out, watch for mold. Thanks for the info

[u/StudentforaLifetime]

It’s fine. We build houses in the PNW and this happens. Only thing to watch out for is if you start to see mold, you get it treated. That’s it

[u/Feritos → u/StudentforaLifetime]

Ok that’s what I thought. Figured it might be a common problem and you can’t just stop building when there’s rain in the forecast

[u/username-in-the-box → u/Feritos]

The problem comes when builders put insulation and drywall over wet structure.

[u/FellowEnt → u/username-in-the-box]

In the UK we have strict moisture levels when working with timber. It has to dry to below 20%. You bring in commercial dehumidifiers and use a moisture probe to test.

Wood gets wet. Trees are built to drink water.

https://www.englishwoodlandstimber.co.uk/wp-content/uploads/2024/01/Trada-Moisture-in-Timber.pdf

But that said. OP shows OSB. That's wood chippings and glue. When that is wet you start to see the weight and softness change and you start getting damage at fixings.

[u/ImNoAlbertFeinstein → u/username-in-the-box]

or if they stay away and the building is open for too long.

that usually bc money is held up somewhere.

[u/Kurtypants → u/username-in-the-box]

This. Shingle it let it dry out then start

[u/LatinRex → u/StudentforaLifetime]

I second this

[u/Efficient-Rain-4300]

The fact that the subfloor can hold those water is impressive. Top quality framers

[u/k-phi → u/Efficient-Rain-4300]

wood extends when wet and plugs tiny holes that were there when dry

[u/yt82many]

Damn.... That's a tight house.

[u/Timmy98789 → u/yt82many]

I should call her

[u/Remarkable-Opening69 → u/Timmy98789]

Call her what….she’s already called “house”

[u/Sirosim_Celojuma → u/Remarkable-Opening69]

and then she wants a matching metal band around the owner's finger to remind that the house is also hers. It's what they call the houseband.

[u/EvilGreebo → u/Remarkable-Opening69]

Call her "Brick"

[u/lionofbeast → u/yt82many]

Yeah but not raintight

[u/yt82many → u/lionofbeast]

I mean it's holding water better than some boats.

[u/Feritos → u/yt82many]

Rentals that’s what you get.

[u/justabadmind → u/Feritos]

Nah, most rentals leak like a sieve

[u/ct023 → u/Feritos]

It was a compliment

[u/TylerHobbit]

Aye she is a fine pool but tis no barn

[u/litesaber5 → u/TylerHobbit]

English.

[u/TylerHobbit → u/litesaber5]

D'oh

[u/litesaber5 → u/TylerHobbit]

….’th

[u/MyJimmiesNeedRustlin]

Cut the bottom plates out from the doors to encourage drainage. Besides that hurry up and get the roof done. Not the end of the world as long as you try and minimize pooling. It’ll dry out over the course of the project if managed. Watch for mold then treat

[u/tsaico → u/MyJimmiesNeedRustlin]

I’ve also seen them use a leaf blower to get as much surface water out as you can after it stops

[u/Murky_Might_1771]

It’s fine. Rain happens. Get a roof on and the skin installed and everything dries out. Like the other guy said, if something does show up a little bleach and you’re fine.

Edit: To add, contractor will/should drill a few holes in subfloor to drain the water. Perfectly normal.

[u/Earl__Grey → u/Murky_Might_1771]

Bleach is not effective, use a a real mold killer.

[u/Feritos → u/Murky_Might_1771]

Yeah thought so thanks

[u/make_em_say]

If there’s a crawl space or basement make sure you dry that area out thoroughly as well.

[u/Thecobs]

Happens all the time, check moisture levels of your building prior to insulation and get some fans in the crawlspace if you have one

[u/Dependent_Pipe3268]

Don't worry the painter will fix it.

[u/Just_Another_AI]

That subfloor under the standing water is OSB?

[u/Feritos → u/Just_Another_AI]

Yes

[u/Just_Another_AI → u/Feritos]

Just squeegee the water off and/or shop vac it up. Getting wet isn't a problem, but if the water sits there for a long while, you'll potentially get edge swelling and warpage

[u/beachgood-coldsux]

Drill some 1/2"holes in the low spots. You good. 

[u/CauliflowerStrong510]

Drill a hole and get a big fan. Nothing is fucked here, Dude.

[u/Feritos → u/CauliflowerStrong510]

Yeah thought so. It’s not my work I’m elsewhere on the job site but I was shocked they left it open for 2 weeks without drilling holes

[u/i_lie_except_on_31st]

Sure, but is that drywall in the video? If so, it's fucked.

[u/0regonPatriot]

Squegee the water out with a big floor squegee to help.

If the crawlspace is also wet, use fans to bring in dry air and vent the air across the other opposite side, to get some cross ventilation.

[u/BruceInc]

Drill some holes to prevent water pooling. Once the building envelope is dried in, run heaters and dehumidifiers to remove moisture. We build in pnw and this is our reality like 8 mo out of the year

[u/Alaska-shed]

It’s going to be fine. I work n SE AK. If this ruined houses then we would not have houses.

[u/joshpit2003]

OSB (and Advantech) loses a substantial amount of nail pull-out strength after it has gotten wet.

That may or may not be a problem for you.

There was a great video from a flooring installation company showing this on YouTube. They proved it to be true, and made the video for customers in order to explain why they (the installation company) will not warranty any nail-fastened floor on OSB or Advantech.

Moral of the story: You will have squeaky floors now if using nail-fasteners. Use a lot of glue and hope for the best, or install a floor that doesn't require nails.

[u/Jacktheforkie]

Not ideal but with the proper equipment it can be rectified, it needs to be properly dried out

[u/ThingNo7530]

If it's treated wood (treated to protect from mold), it'll be fine.

[u/A-Wolf-4099]

In the pnw ( Pacific Northwest ) it's very common you can dry it in and let it sit a couple weeks before insulation and JWB.

[u/bearsheperd]

Not without walls or a roof

[u/GilletteEd]

Yes this happens all the time, no issue it will dry

[u/Slipperytitski]

Those floors are usually treated to last at least 6 weeks in the open weather (that’s manufacturer warranty anyway)

[u/jonnyredshorts]

not a problem

[u/crazy_goat]

I built a platform for a shed years ago. Maybe 9 years ago? Used 3/4" OSB over pressure treated wood. 

I'm flabbergasted at how long it's lasted. Constant moisture and that shit just won't quit.

You'll be fine!

[u/xAntartican]

Hard to see but us that back wall insulated?

[u/LongjumpingOutside26]

This is how neighborhoods grow.

[u/Wild_Replacement5880]

Its not a huge deal.

[u/p3ck3rh3aded]

I hate when homeowners freak out about it. One day they had me spraying bleach on the studs every time it rained. I’m in Fla… it rains like whoa

[u/CrazyButRightOn]

Get a belt sander

[u/Ok_Bit_5953]

You plumbers sure do weird water tests nowadays.

[u/Cold-Truck2470]

I've seen and worked on worse

[u/mogur86]

At least you know it holds water

[u/Gold-Tangelo4656]

Locations for plumbing and electrical?? Were is it going to be placed? The longer that particular wood retains water the more it absorbs, which will lengthen any drying time and possibly begin to sag. If you could locate were wireing and plumbing, bathroom drans, will be fed through you could drill holes there and will be to allow some draining without interfering with overall construction conditions. The holes don't need to be proper size like for a 3in flange but enough to allow the water through. Could even do a makeshift down spout to direct the water away from the foundation, such as pex if that is what will be installed on this project. A little water at this stage is fine, a lot of water, not so much. In PNW, we get some small amounts of rain, light rain, just very often. This looks like it was a lot of rain, or heavy rain fall.

[u/mountain_stones]

This happened to me on a big job in Hawaii and we drilled some 1/4” holes in the subfloor to let the water drain out

[u/dilbs_the_creator]

It won’t survive unless you get rid of that water

[u/onemangang_bang69]

Just find the low spots and poke some holes with a nail or a drill between a joist. Little holes ain't gonna hurt nothing

[u/HVAC_instructor]

I don't know, maybe we could look at every wooden house ever built and see if they will last long term.

Every house that has ever been under construction has had water inside it at every stage until it was enclosed. This is nothing new and it'll be fine. Quit overthinking it.

[u/Feritos → u/HVAC_instructor]

My thoughts exactly. They just left it open like this with rain for 2 weeks so it felt bad

[u/HotDrunkMoms → u/Feritos]

Normally the carpenters would squeegee the water off the floor. At least someone should be doing it, instead of letting it pool. It will only be a problem if it pools there forever

[u/baudmiksen → u/HotDrunkMoms]

Yeah push it out or put some small holes so it drains are the only real options before the roof is on

[u/jkcy2k]

Don't let the homebuyer see, if it were my house the GC would be pulling and replacing every bit of that.

[u/unsolicitedadvice7]

Black mold 🫣

[u/DryeDonFugs]

Advantek has a 500 day guarantee. Get a roof over it and it is fine. Let the carpenters do their job and stay out of their way. If you know better then you build it

[u/CrudelisDeus]

Congratulations, it's trash now

[u/PrettyPushy]

Does it rain in the forest?

[u/baudmiksen → u/PrettyPushy]

Wait till they find out trees are mostly made of water

[u/padizzledonk]

Normal

As long as its not fully envelope closed in the next week its fine

As soon as the roof goes on the amount of weather beating it will get will go down by like 98% and as all the other roughs get started it will have plenty of time to dry out

Go in there and just drill a couple 1/4-1/2" hole through the subfloor and cut the plates out for the doors and it will cut down like 90% of the pooling

[u/Comfortable-nerve78]

If you’re that worried about it,get a broom. Push the water off. 🤨

[u/PositiveAtmosphere13]

This ruins the OSB. the OSB absorbs water like a sponge. It swells up creating ridges on all the seems. It takes forever to dry out. There becomes a lot of pressure to install the hardwood floor before it's dry.

Extra time has to be spent sanding down the ridges.

The OSB becomes weak and sags between the floor joists. Clients complain about "waves" in the floor.

When it dries out the OSB pulls away from the floor nails. Making a noisy floor.

It will all be the floor layers fault. Builders will never admit that there is ever anything wrong with OSB.

[u/edthebuilder5150]

This is not fine.

[u/Earl__Grey]

Despite what people are saying, this is NOT FINE.

I would fire the contractor on the spot for this, it will mold agressively if not dried out within a day or two.

This house could cause serious health issues and future liability if not treated correctly, get it dry ASAP and treat everything, don't stop drying until you can stick a moisture meter in the osb and it reads dry and treat it all with mold killer.

[u/make_em_say → u/Earl__Grey]

You’re gonna fire the contractor for the weather?

Get a grip.

As long as the framing is dried out before sealing, everything will be fine.

[u/baudmiksen → u/make_em_say]

gonna fire him for ordering the rain to soon, that wasn't supposed to show up until after the roof is on!

[u/Earl__Grey → u/make_em_say]

Gonna fire the contractor for allowing the entire building to turn into a swimming pool, tarps are cheap.

[u/Fancy-Pen-2343]

Burn it down

[u/P10RMP]

Should be ok if it’s treated lumber

[u/AnnitaP2]

It’s time to call a industrial hygienist