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new home construction (mold)!!!

Posted by Arceneaux83 (My Page) on
Fri, Jul 13, 12 at 12:52

My wife and I are having our first home built and everything thing has been going smoothly until this week. It started Friday, our home had walls with siding up before the roof was put on. Well it rained Sunday and it was enough to put about 1-3 in. of water in some spots upstairs. Monday the roof was put on and shingled with the water still on the floor. We checked the house everyday to see if anything had been done about the water but nothing. Thursday, the water is down (soaked into the wood) and now we're noticing what we think is mold. Not in just a few spots everywhere! We can't tell if its a serious problem or not. As far as the floor goes we are requesting that it be replaced. Please tell me what you think. I could only upload one picture


Follow-Up Postings:

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New home construction (mold)!!!

More Pics.


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RE: new home construction (mold)!!!

Not a big deal at all. Once it's dried in, it will be fine. ALL houses constructed everywhere have a bit of mold on the framing until it's dried in and dried up.


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RE: new home construction (mold)!!!

First of all, I also don't think it's a big deal because it'll go away after it's dried in (maybe you can kill the mold with bleach before).

But, that's a LOT of mold for a short rain event. I had some wood framing out in the elements for more than 6 months and while the wood got a grey patina (like a wood fence), it for sure didn't grow mold like that...


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RE: new home construction (mold)!!!

I agree with the above posts in that there is a lot of mold but it isn't a big deal. A conscientious builder would probably at least clean it for you. The floor is designed to be wet but with a lot of standing water, my builder would usually dry it in some manner.


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RE: new home construction (mold)!!!

Bleach won't kill the mold. Use peroxide instead. Can be bought at a pool supply place.


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RE: new home construction (mold)!!!

"Bleach won't kill the mold. Use peroxide instead. Can be bought at a pool supply place."

Neither ill penetrate into the wood enough to do any good.

Every house is built outside in the weather until they are dried in.

they just about always get rained on.

It is not an issue worth worrying about.


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RE: new home construction (mold)!!!

Ditto what everyone else said, also they 'can't' replace the floors. All of the walls are 'on' the floor!


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RE: new home construction (mold)!!!

Glad I found this post.

I was walking through our build today and noticed mold on lots of the studs. It's not like the photo above...more like a light green hue and not raised.

So...there is nothing I can do for my peace of mind? How do you get rid of it? How does it just 'go away' with the house drying out? I thought that once mold got a stronghold, not much could be done?

Will it only go away if heat is applied? We live in very cold Alaska so there's not going to be any heat soon. We are shelled in and will do some things this winter but I don't think heat will be soon since we can't do the heat until we do the electrical/plumbing & sheetrock.

Thanks!


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RE: new home construction (mold)!!!

Heat isn't the issue with molds... moisture is. The very cold will likely put it into a dormant state too, but mostly if you get a nice dry winter (too cold to be moist), that will also stop it in its tracks (until it gets wet).

Mold/mildew is a part of nature. There are all kinds of things living all kinds of places...


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RE: new home construction (mold)!!!

Thanks, kirkhall.

So...if it's going to stay in the wood in some form, how do we protect ourselves and keep it from growing once it's covered with a vapor barrier & sheetrock? I hate the thought of mold spores lurking - just waiting for the chance to pop.


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RE: new home construction (mold)!!!

melaska - Make sure the framing is dried out before you sheetrock.

If you have to, bring in a heater after the outside sheathing is on and warm it up and dry it out.


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RE: new home construction (mold)!!!

Thanks, lazygardens...

Will it be ok if it's dry but the mold still shows? If bleach or peroxide don't work, what would you use? Does the visible mold have to be gone before we can cover it up?

Thanks!


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RE: new home construction (mold)!!!

I'd remove the visible mold just because. and then spray with a borax solution (inhibits mold growth--this will help keep those spores at bay you are worried about. bleach kills what is there, but you already will have taken care of that with the cold/dry winter. You want something that has lasting inhibitory power).


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RE: new home construction (mold)!!!

Thanks, kirkhall...so...I use bleach to remove the visible mold before spraying with the borax? What solution of bleach should I use? Thanks!


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RE: new home construction (mold)!!!

Water and Spic n Span/TSP is safer for you than bleach for removing the surface mold unless you are trying to make the wood lighter in color.

Alternatively, you can use borax in water to do the job in one step and dry the wood with fans to leave a borax residue. Mist the mold with water before removing it to prevent spreading spores.

Wear an N95 or N100 rated particulate mask like the Moldex 2730N100 series, eye protection, rubber gloves and protective clothing.

I am curious why the contractor is not willing to take responsibility for enclosing a house with standing water in it. Regardless of the degree of damage that resulted there is no excuse for this irresponsible action.


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RE: new home construction (mold)!!!

we are in the same boat with the mold and, now that our window sills are not installed yet we have water pouring into the house and all the drywall is up. i'm terrified to know what's going on behind the drywall. we had water coming in beneath the walk-out basement doors yesterday and,with all this rain, i'm sure it's continuing to come in. the mold really concerns me even though i heard the same thing (that once the house is sealed up and dry it will go away). i plan to do a mold test once the exterior doors are installed and the window sills are in place. mold isn't something to mess around with as it can cause neurological damage. let's hope neither of our houses will have issues.


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RE: new home construction (mold)!!!

I don't have window sills installed yet either but the flashing prevents water intrusion at my house.

I thought the sill is cosmetic and water is taken care of by flashing ?!


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RE: new home construction (mold)!!!

"we have water pouring into the house and all the drywall is up."

Someone has really screwed up.

Drywall does not go up untill the house is 'dried in.'

Period.

Ever.


And if you really want mold and mildew to take off, heat the place with some torpedo heaters.

Between the warmth and the huge moisture injection form the heaters you can get mold to grow all over the framing.

This post was edited by brickeyee on Thu, May 2, 13 at 13:52


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RE: new home construction (mold)!!!

Respond immediately to building leaks and floods. This means within 24-48 hours all of the critical steps need to be taken if you want to maximize the chance of avoiding a costly mold cleanup project.

home restoration

Here is a link that might be useful: Rainbow International Monterey


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RE: new home construction (mold)!!!

Very glad to have found this post. We are building a new timber frame house and the basement ceiling is complete - the exposed joists are Douglas Fir, and the ceiling is pine board. This was done as soon as the basement was completed, and then a layer of plywood was nailed overtop of the pine. When you look up from the basement you see exposed Fir beams and a pine ceiling.

Last weekend we had torrential rain (about 60 mm) and the entire basement ceiling was soaked through and dripping. We discovered yesterday that now where the Fir beams meet the pine, there is mold growing (!) and it's spreading over the pine! This mold has grown (and some of it already fuzzy) in one week.

The house is not yet closed in (no roof and still walls missing in some places, as this timber frame is taking a while to install). But what should we do about the mold right now? I'm worried it will destroy the pine in the ceiling as it's not something we can cover over with sheet rock once the house is closed up and dried out.

Our current plan is to:
a) wash visible mold with bleach or borax (I don't want bleach stains on the contrasting red Douglas fir)

b) seal up basement somewhat by sheeting stairway and window openings with plywood and running a commercial dehumidifier. This may not work well since the basement floor is not yet poured and it's still crushed stone.

I've read that the mold problem will take care of itself once the drying process is complete, but I don't want it to leave unsightly marks on my ceiling in the meantime! Help!


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RE: new home construction (mold)!!!

Just stick with the borax solution. You don't HAVE to use bleach.


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