How To - Prevent Basement Mold - How To Guides - Page 2 - DIY Chatroom Home Improvement Forum


Go Back   DIY Chatroom Home Improvement Forum > DIY Repair > How To Guides

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Display Modes
Old 07-26-2011, 04:49 AM   #16
Newbie
 
Join Date: Jul 2011
Location: Hongkong
Posts: 8
Rewards Points: 10
Default

How to - prevent basement mold


"2. Use a Dehumidifier
If you detect high moisture levels in the basement, invest in a good quality dehumidifier. This appliance is quite effective in keeping humidity levels under check.
Dehumidifiers come in different sizes and price range. Research what is best for your particular situation."

I just use Dehumidifier, it works find for me. Thanks for your other ways. good!

Advertisement

alain33 is offline   Reply With Quote
Old 07-28-2011, 02:47 PM   #17
Mold!! Let's kill it!
 
Join Date: Feb 2008
Location: Central Pennsylvania
Posts: 2,849
Rewards Points: 2,012
Default

How to - prevent basement mold


Quote:
Originally Posted by AtlBizHub View Post
Hello,

Does it make a difference if a cool or warm mist humidifier is used in the basement?

Thanks,
It certainly could. It depends on what the realative humidity levels are in the basement. Adding more humidity to a basement that already has a fairly high RH could easily drive it into the danger zone for mold. Whether it is cool or warm mist really only affects the absorption time for the vapor. Water vapor that is warmed will absorb into the air faster than cool. How long it takes for that vapor to condense out of the air onto a cool surface that is below dew point won't change. Dew point is determined by the relative humidity and air temperature. Once relative humidity reaches 100% for a given air temperature (saturation point), the moisture will condense out of the air. It will rain in your basement. By then, you will have gone past the minimum level that mold needs to thrive.

Last edited by Maintenance 6; 07-28-2011 at 02:50 PM.
Maintenance 6 is offline   Reply With Quote
The Following User Says Thank You to Maintenance 6 For This Useful Post:
AtlBizHub (07-28-2011)
Old 08-15-2011, 12:18 PM   #18
Newbie
 
jsmith48's Avatar
 
Join Date: Jun 2011
Location: LITTLE ROCK!
Posts: 28
Rewards Points: 25
Default

How to - prevent basement mold


thanks for the info, a lot of my neighbors have older houses in the town i live in. they always struggle with the mold down there.
jsmith48 is offline   Reply With Quote
Old 10-17-2011, 01:03 AM   #19
Member
 
Join Date: Aug 2010
Location: metro
Posts: 1,310
Rewards Points: 852
Default

How to - prevent basement mold


Quote:
Originally Posted by AGWhitehouse View Post
Not a great idea to cover a wall cavity with plastic in a basement space. moisture enter from the exterior in to the wall cavity and has nowhere to go. It collects inside the wall and harbors the growth of mold. Basements need to breath...

Vapor barriers (or significant retarders a.k.a Class I or II) should never be used in a basement space unless they are directly applied to the exterior concrete/masonry walls surface. I don't even like that, but if you're insistent on it, that's the best place for it.
what do you suggest for basement insulation?
federer is offline   Reply With Quote
Old 10-25-2011, 07:28 AM   #20
Newbie
 
Join Date: Jun 2011
Posts: 21
Rewards Points: 10
Default

How to - prevent basement mold


Quote:
Originally Posted by AGWhitehouse View Post
Not a great idea to cover a wall cavity with plastic in a basement space. moisture enter from the exterior in to the wall cavity and has nowhere to go. It collects inside the wall and harbors the growth of mold. Basements need to breath...

Vapor barriers (or significant retarders a.k.a Class I or II) should never be used in a basement space unless they are directly applied to the exterior concrete/masonry walls surface. I don't even like that, but if you're insistent on it, that's the best place for it.
My house sits on a sloped lot, with the north wall of the basement being completely below grade, below my garage floor, and my south wall being nearly entirely above grade, with full size windows. Since an external barrier and membrane aren't really an option, what suggestions are there for preventing moisture and mold from the inside?

I have some issues with mold, and moisture is a definite problem. I have the fiberglass "diaper" going around the upper half of all but the south wall, where it covers the entire wall.

Last edited by DocWard; 10-25-2011 at 07:32 AM.
DocWard is offline   Reply With Quote
Old 10-25-2011, 04:55 PM   #21
Member
 
AGWhitehouse's Avatar
 
Join Date: Jul 2011
Posts: 1,378
Rewards Points: 500
Default

How to - prevent basement mold


Quote:
Originally Posted by federer View Post
what do you suggest for basement insulation?
http://www.buildingscience.com/docum...ion-assemblies
__________________
Life's too short...so enjoy it!
AGWhitehouse is offline   Reply With Quote
Old 10-25-2011, 04:57 PM   #22
Member
 
AGWhitehouse's Avatar
 
Join Date: Jul 2011
Posts: 1,378
Rewards Points: 500
Default

How to - prevent basement mold


Quote:
Originally Posted by DocWard View Post
My house sits on a sloped lot, with the north wall of the basement being completely below grade, below my garage floor, and my south wall being nearly entirely above grade, with full size windows. Since an external barrier and membrane aren't really an option, what suggestions are there for preventing moisture and mold from the inside?

I have some issues with mold, and moisture is a definite problem. I have the fiberglass "diaper" going around the upper half of all but the south wall, where it covers the entire wall.
People have used drain boards along the interior foundation face and tied it into a perimeter drain tile beneath the floor. This gives a channel for any incoming moisture to escape into the drainage system.
__________________
Life's too short...so enjoy it!
AGWhitehouse is offline   Reply With Quote
Old 10-25-2011, 08:24 PM   #23
Newbie
 
Join Date: Jun 2011
Posts: 21
Rewards Points: 10
Default

How to - prevent basement mold


Quote:
Originally Posted by AGWhitehouse View Post
People have used drain boards along the interior foundation face and tied it into a perimeter drain tile beneath the floor. This gives a channel for any incoming moisture to escape into the drainage system.
Our basement has a channel around the perimeter, between the edge of the slab and the wall. I have heard this referred to as a "floating" slab, but I am not sure that is the actual term. I would have to check, since it has been awhile since I looked, but I believe there is a drain there in one corner.

That being the case, what are my options? Do I then go ahead and put up a vapor barrier, or what should I do?
DocWard is offline   Reply With Quote
Old 10-26-2011, 02:47 PM   #24
Member
 
AGWhitehouse's Avatar
 
Join Date: Jul 2011
Posts: 1,378
Rewards Points: 500
Default

How to - prevent basement mold


You would need to take up the perimeter of your slab and install a system that looks like this: http://www.terrafirmalandscape.net/p...nt_2_lg_fs.jpg

The pipe is encased in filter fabric and drains either to daylight or a sump pit. The black piece is the drainage board. Notice the egg-crate like dimples that create a channel for water flow. This board should extend up the face of the wall. Then you can place rigid insulation board over the drainage board and then frame out a wall from there.

I will say that this is not the ideal solution. Excessive water migration through your foundation walls will not help its integrity over it's life span. Excessive water should really be treated at the exterior, site unwilling or not....
__________________
Life's too short...so enjoy it!
AGWhitehouse is offline   Reply With Quote
The Following User Says Thank You to AGWhitehouse For This Useful Post:
DocWard (10-26-2011)
Old 10-26-2011, 03:45 PM   #25
Newbie
 
Join Date: Jun 2011
Posts: 21
Rewards Points: 10
Default

How to - prevent basement mold


Quote:
Originally Posted by AGWhitehouse View Post
You would need to take up the perimeter of your slab and install a system that looks like this: http://www.terrafirmalandscape.net/p...nt_2_lg_fs.jpg

The pipe is encased in filter fabric and drains either to daylight or a sump pit. The black piece is the drainage board. Notice the egg-crate like dimples that create a channel for water flow. This board should extend up the face of the wall. Then you can place rigid insulation board over the drainage board and then frame out a wall from there.

I will say that this is not the ideal solution. Excessive water migration through your foundation walls will not help its integrity over it's life span. Excessive water should really be treated at the exterior, site unwilling or not....
I appreciate the answer, but I guess it still leaves me scratching my head about what to do with the walls short of digging away under my garage, which means getting rid of a big chunk of my driveway and moving my central air, along with the necessary bracing to keep it from falling in and making it safe to work under, then putting up a barrier on the outside of the wall. Sounds like it would cost nearly as much as the house cost to build.
DocWard is offline   Reply With Quote
Old 10-26-2011, 04:03 PM   #26
Member
 
AGWhitehouse's Avatar
 
Join Date: Jul 2011
Posts: 1,378
Rewards Points: 500
Default

How to - prevent basement mold


Quote:
Originally Posted by DocWard View Post
I appreciate the answer, but I guess it still leaves me scratching my head about what to do with the walls short of digging away under my garage, which means getting rid of a big chunk of my driveway and moving my central air, along with the necessary bracing to keep it from falling in and making it safe to work under, then putting up a barrier on the outside of the wall. Sounds like it would cost nearly as much as the house cost to build.
Curtain drains that are away from the structure can serve to re-direct the mass water flows around the structure. That would alleviate a great deal of hydraulic pressure from the foundation and would not require excavation directly against the structure.
__________________
Life's too short...so enjoy it!
AGWhitehouse is offline   Reply With Quote
The Following User Says Thank You to AGWhitehouse For This Useful Post:
DocWard (10-26-2011)
Old 10-26-2011, 04:30 PM   #27
Newbie
 
Join Date: Jun 2011
Posts: 21
Rewards Points: 10
Default

How to - prevent basement mold


I should mention that I am not planning on finishing my basement beyond a minimal amount. My plan is to leave it "rustic" but usable for things such as a workout area and hobby area. I would like to put in a mold resistant drop ceiling, and perhaps some sort of inexpensive flooring, such as matting that can be taken up / replaced if necessary. The most important things for me are lack of mold / mildew, moisture, and better lighting.
DocWard is offline   Reply With Quote
Old 11-30-2011, 07:33 PM   #28
Stay Calm & Carry On
 
Atticus's Avatar
 
Join Date: Nov 2011
Posts: 5
Rewards Points: 10
Default

How to - prevent basement mold


Thanks for this guide. Genuinely guilty for doing some of these things... genuinely stupid of me not realizing too.
Atticus is offline   Reply With Quote
Old 11-30-2011, 09:45 PM   #29
Newbie
 
Join Date: Jun 2011
Posts: 21
Rewards Points: 10
Default

How to - prevent basement mold


Well, I do have some good news. As I was cleaning my basement, I found two paperback books in the trench between my basement wall and floor. They had become soaked and swollen, and I think they were acting as dams, allowing the basement to flood. Since I have removed them, we have had substantial rains, and while the walls themselves get wet, there is no dampness on the floor.

As for the walls, I think that I need to re-grade come spring, because I am seeing moisture in areas very close to where my walls are above grade. I looked, and the slope that was once away from the house is no longer that way. Hopefully dryer walls will mean less mold. I am working hard to keep things clean as well, and either moving, sealing, or eliminating those things that mold dines on.
DocWard is offline   Reply With Quote
Old 01-11-2012, 05:48 PM   #30
Newbie
 
Join Date: Sep 2011
Posts: 25
Rewards Points: 10
Default

How to - prevent basement mold


Mold loves moisture. Keep everything as dry as you can by running fans and making sure you have no leaks. Mold can be a lot more dangerous than people give it credit.

Advertisement

metal is offline   Reply With Quote
The Following User Says Thank You to metal For This Useful Post:
DocWard (01-12-2012)
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Remodeling basement Mold on Sill bowbender6 Building & Construction 2 02-06-2011 03:00 PM
Mold on Basement Joists KEC2010 Building & Construction 2 11-30-2010 07:22 PM
Adding Subpanel for Basement - Few Questions mindle Electrical 28 01-07-2010 09:49 AM
Insulating basement ceiling - your recommendations? jtmann HVAC 8 11-24-2009 05:44 PM
Flooded basement and Mold Remediation? Lightyear General DIY Discussions 34 04-25-2007 08:09 AM




Top of Page | View New Posts