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Old 04-16-2020, 12:53 PM   #1
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Why would I have mold behind interior door jambs


I need advice

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Old 04-16-2020, 01:20 PM   #2
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Re: Why would I have mold behind interior door jambs


We need more info. What country, state, city is your home located in? His old is your home? Is it a multi-level? What level is the problem occurring on? Is this perhaps a bathroom door?
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Old 04-16-2020, 05:01 PM   #3
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Re: Why would I have mold behind interior door jambs


Tallahassee Florida, slab house one level small 2 bed 1 bath single family home. Bathroom, and bedroom door jambs. I've cleaned it with RMR-86. ( great stuff for mold and mildew), primed and repainted. House was built in 77. Brick 3 sides. My first solo remodel. Lost my husband 2 years ago. I just don't get this.

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Old 04-16-2020, 05:05 PM   #4
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Re: Why would I have mold behind interior door jambs


I'm a retired senior cabinet designer from Chicago. I've done many rehab/ remodeling projects. Maybe the caulk failed? Exterior doors id expect this. Interior doors??
Tell me this is not a huge issue.

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Old 04-16-2020, 05:48 PM   #5
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Re: Why would I have mold behind interior door jambs


Is the mold stain bleeding through the primer and paint?

You should be able to post pictures after your first post.
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Old 04-16-2020, 06:16 PM   #6
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Re: Why would I have mold behind interior door jambs


No, I used a mold mildew removal product first. Called RNR-86, I HIGHLY recommend this product. Treated mold let areas dry for 2 weeks before primering. Recalled door jambs now ready for final paint. I had several different mold spours. Oh yeah, forgot a step. After mold removal needed to remud the areas. The mold was deeply pentitrated in some areas. The wall was quite pitted. Ill add pictures. New roof 5 years ago.

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Old 04-16-2020, 06:27 PM   #7
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Re: Why would I have mold behind interior door jambs


Posted pictures. New here so its a new topic of mold

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Old 04-16-2020, 06:35 PM   #8
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Re: Why would I have mold behind interior door jambs


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Originally Posted by sherrimurawski2 View Post
Tallahassee Florida, slab house one level small 2 bed 1 bath single family home. Bathroom, and bedroom door jambs.

A possibility . Those are 2 doors are commonly closed which can force cold A/C air into walls that are containing warmer humid air leading to possible condensation. About a year ago there was a post from FL about light switch covers being wet with condensation, but as you say, more common on exterior walls which these were.
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Old 04-16-2020, 06:37 PM   #9
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Re: Why would I have mold behind interior door jambs


Funny story, there were no doors when I bought the house. No info on how long prior.

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Old 04-16-2020, 06:42 PM   #10
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Re: Why would I have mold behind interior door jambs


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A possibility . Those are 2 doors are commonly closed which can force cold A/C air into walls that are containing warmer humid air leading to possible condensation. About a year ago there was a post from FL about light switch covers being wet with condensation, but as you say, more common on exterior walls which these were.
warm air finding a cold path to the attic in the winter. Sounds like the ceiling needs to be seal from the attic side.
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Old 04-16-2020, 07:54 PM   #11
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Re: Why would I have mold behind interior door jambs


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warm air finding a cold path to the attic in the winter. Sounds like the ceiling needs to be seal from the attic side.
My front door is not sealed. Needs to be replaced. I was thinking that could cause an issue.

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Old 04-16-2020, 09:19 PM   #12
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Re: Why would I have mold behind interior door jambs


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Originally Posted by sherrimurawski2 View Post
My front door is not sealed. Needs to be replaced. I was thinking that could cause an issue.

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Yes when you have lots of drafts it is a problem, the question is where is all the air going, Most of the time it is going up and it is full of humidity and as it cools the moisture condenses and that is where you find mold.

You need the attic inspected for mold but don't go up there with out one of these masks that you likely can't find right now.

There are lots of hole in the sealing that allows air to escape.


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Old 04-16-2020, 10:29 PM   #13
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Re: Why would I have mold behind interior door jambs


Thanks i have COPD. Mold causes issues for me.
I appreciate your advice and direction.

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Old 04-16-2020, 10:36 PM   #14
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Re: Why would I have mold behind interior door jambs


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Originally Posted by sherrimurawski2 View Post
Thanks i have COPD. Mold causes issues for me.
I appreciate your advice and direction.

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There are holes in the tops and bottom of wall for wires and pipes and what have you and if the venting in the attic is not set up right it will suck air from a cooler basement or a cold crawl space and warm moist air from the house.

It all adds up to bad news.
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Old 04-17-2020, 12:35 AM   #15
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Re: Why would I have mold behind interior door jambs


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Originally Posted by Nealtw View Post
There are holes in the tops and bottom of wall for wires and pipes and what have you and if the venting in the attic is not set up right it will suck air from a cooler basement or a cold crawl space and warm moist air from the house.

It all adds up to bad news.
Well now it's making sense. I'll have to get someone in the attic to button it up. Feeling better now there is a starting point.
Thank you for your reply.


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