Walls and Ceilings - drywall
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steelerfan
04-08-02, 05:46 PM
Help - you can see all the studs and nails in the drywall on all exterior walls in our home. They are appearing as dark gray/black stripes.
What would be causing this and how do you get rid of it? :confused:
What would be causing this and how do you get rid of it? :confused:
woodbadger
04-18-02, 08:17 AM
This is from moister condensing on your walls.
The studs have less R value then the insulated wall between the studs.(I would guess 2x4, not 2x6 where this is less of an issue)
So, when your room is hot and it is cold outside, the wall are coldest at the studs. Just like your bathroom mirror, water vapor condenses on the cold surface and dust sticks to the water.
When the water dries the dust stains the paint, so washing will reduce the problem, but you will still see the lines.
You need to apply Kilz to your whole wall and then repaint. Don't paint the wall white, use a color (the darker the better). You can also texturize your wall. Texturizing really helps to mask the issue.
The studs have less R value then the insulated wall between the studs.(I would guess 2x4, not 2x6 where this is less of an issue)
So, when your room is hot and it is cold outside, the wall are coldest at the studs. Just like your bathroom mirror, water vapor condenses on the cold surface and dust sticks to the water.
When the water dries the dust stains the paint, so washing will reduce the problem, but you will still see the lines.
You need to apply Kilz to your whole wall and then repaint. Don't paint the wall white, use a color (the darker the better). You can also texturize your wall. Texturizing really helps to mask the issue.