bad windows? mold?

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blitzilla
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bad windows? mold?

Post by blitzilla » Sun Nov 17, 2019 10:01 am

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So heres the deal I bought a new house in 2013 ( brand new first owner) and right away during the winter I noticed the bottom of thw windows watering up due to cold temperature outside/hot inside, when I talked with the contractor he told me basicly theres still moisture in the walls since its brand new.. ok fine fast foward the 2nd winter same stuff happens + now the contractor is MIA... great

so now in 2019 whenever temperature goes around 0celcius the process starts again, also during like super cold temperature the whole rail will fill up with water( enough to fill a bottle/window)
Im wondering whats wrong with my windows, everyone ne of them does it. same with the patio door, the worst is obviously the bathroom one but thats expected.
I have a central unit that changes the air in everyroom tho I dont know what to set it at so I think mostly its on 20min off 40 rinse and repeat 24/7
heres some picture
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blitzilla
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Re: bad windows? mold?

Post by blitzilla » Sun Nov 17, 2019 10:05 am

-10c outdoor atm

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A. Spruce
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Re: bad windows? mold?

Post by A. Spruce » Sun Nov 17, 2019 10:56 am

condensation on windows is common, no matter how well insulated they may be. Water should not be collecting in the bottom track, if it is, then the weep holes are plugged and need to be cleared.

As for the condensation itself, if you could expose the windows to direct air from the room, that will usually help minimize the condensation due to the air flow to the window. Bury the window behind curtains or blinds where air flow can't get to them and condensation will be worse.

You should clean the mold/mildew with bleach before it gets out of hand as it has.

For what it's worth, I've never heard of a new home having trapped moisture in the walls that would cause the problems you're having. Sounds to me like the builder/contractor was simply trying to sneak out the driveway and avoid the problem.
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blitzilla
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Re: bad windows? mold?

Post by blitzilla » Sun Nov 17, 2019 11:15 am

What humidity level should be kept in the house during winter?

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Re: bad windows? mold?

Post by Admin » Sun Nov 17, 2019 11:26 am

Where do you live? You probably need a heat recovery ventilator (HRV) or if you have one you probably don't have it set right. The water on the windows is a symptom not the problem.

blitzilla
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Re: bad windows? mold?

Post by blitzilla » Sun Nov 17, 2019 11:28 am

I do have an hrv its set at 20/40 not 2 sure whats it means

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Re: bad windows? mold?

Post by blitzilla » Sun Nov 17, 2019 11:29 am

I live in quebec canada

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Re: bad windows? mold?

Post by Admin » Sun Nov 17, 2019 11:29 am

What does your wall control look like? The 20/40 is a model number or maybe a timer?? We have some 20 min HRV timers in the bathrooms.

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Re: bad windows? mold?

Post by Admin » Sun Nov 17, 2019 11:29 am

I had the same problem when I moved into my new house in 07. In my case the installer had the wrong HRV controller on the wall and I didn't have it set right. After having it changed out and using it correctly we now only get very small amounts of water on the windows in extreme temps (I'm in Sask so we get legit cold in winter).

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Re: bad windows? mold?

Post by Admin » Sun Nov 17, 2019 11:31 am

Your HRV needs to run more, like continuously until the water stops appearing. Post a pic of the wall control.

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Re: bad windows? mold?

Post by blitzilla » Sun Nov 17, 2019 12:03 pm

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Re: bad windows? mold?

Post by Admin » Sun Nov 17, 2019 2:34 pm

Look up the make/model and find the owners manual online. It should be running continuously if there is that much water showing up on the windows. Ideally you want to run some kind of automatic setting from that control panel.

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Re: bad windows? mold?

Post by Shannon » Sun Nov 17, 2019 8:49 pm

So in winter your home humidity level should be somewhere between 30 to 60%, really all year round. Ideally really around 45-55. A properly functioning HRV and exhaust fans for kitchen and bathrooms are a must as well. Usually with HRVs there will not be a separate fan also in bathroom but its not a bad idea to add, many HRVs a poorly set up for whole homes.
Admin is correct when your HRV is set and sized properly you should be able to reduce this level to what you need or what is comfortable. You will likely still get some moisture but it really should not always be running off the windows.
Im not familiar with that controller but the 20/40 may be the only settings it has (20mins. or 40 mins.)

I'm not sure what Spruce is referring to as far as "plugged weep holes"? There should be nothing like that on the interior of the window? At least I have never seen that anywhere but on the exterior.
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blitzilla
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Re: bad windows? mold?

Post by blitzilla » Mon Nov 18, 2019 5:55 am

The exaust hole are clogged aometimes on the window. I uauly clean em. But the amountnof water in the rail usuly freeze anyway so it cloga again

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Re: bad windows? mold?

Post by Shannon » Mon Nov 18, 2019 7:21 am

The moisture on the interior surface does not drain to the exterior of the window.
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Re: bad windows? mold?

Post by Admin » Mon Nov 18, 2019 10:17 am

Your windows are fine, get your "ventilation fan" working correctly or running continuously until the window condensation is gone.

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