I wouldn t notice this on the semi gloss lavender paint but it pools on the white wainscotting below.
Oily substance on bathroom walls.
On the surface of a latex paint.
If you live in an older house that had a lot of different residents move in and out over the years there s no doubt that the place has a lot of character but one mystery that has been stumping me for some time now are these gross brown spots and streaks on my bathroom walls.
Yellow sap like substance on inside walls.
Behind 2 of them are bathrooms and the 3rd backs on to a hallway near the kitchen.
The odd thing which i cannot figure out is that a faint yellowish substance appears from nowhere and runs down the wall.
It looks like water has condensed on the wall but despite repeated cleaning the substance still appears brown and sticky.
Red stains on an interior wall possibly wallpaper that may be a red mold.
Only thing we have done is put a metal roof on the house approximately one year ago.
It is not happening in the bathroom and the hallway was painted approximately 2 years ago.
The ceiling seemed unaffected.
Then i noticed it on top of the radiator.
All 4 walls in the bathroom were bleeding from top to bottom.
Yes you are right it is plaster out of the 4 walls 3 of them have these oily yellow tear drops.
I have an interior bedroom wall that somehow produces a brown sticky substance that runs down the wall.
Several weeks ago the walls in the bathroom began to bleed a mysterious sticky substance some sort of oil.
Having just cut a hole through the dry wall i can confirm that there are no leaks from the.
Concentration of water soluble paint ingredients called surfactants.
In colder weather while taking a shower water eventually condenses on our bathroom walls even with the exhaust fan on.
This is an interesting thread.
Over the last month or so we have had random spots of sticky yellow sap on our walls in weird spots.
It didn t build up it more or less pooled.
We just noticed yesterday this scenario on our hallway walls outside the bathroom.
In the bathroom i ve noticed that on certain surfaces like the part of the sink that is connected to the wall has some yellow substance in it.
May be evident as tan brown or clear spots or areas and can sometimes be glossy soapy oily or sticky.
Then pooled on top of the toilet paper holder.
Red stains on walls or ceilings may be due to mineral salts and effloresence if the wall is masonry particularly brick masonry or the red stains may be a species of mold or even a red yeast such as rhodotorula often found indoors in wet moldy conditions.
The bathroom is up against the wall to the outside of the house.