Yellow Tar Streaks On Bathroom Walls

Those spots and streaks are the tar buildup from cigarette smoke and it gets so thick that it starts streaking down the walls.

Yellow tar streaks on bathroom walls.

Wipe the wall then dry it to test for colorfastness. Yellow sap like substance on inside walls over the last month or so we have had random spots of sticky yellow sap on our walls in weird spots. Drip marks on your bathroom walls occur due to condensation of hot shower or bath forms that started to streak down turning into lines on the walls right after the water evaporates. These lines result after the water evaporates.

Cigarette smoke of those two potential cases cigarette smoke is usually the most common culprit. The second explanation is that the yellow stuff is you eww or more specifically the oils from your skin lifted off by with hot water and redeposited onto the walls after the humidity in the room dies down. It means that your walls are painted with an oil based paint and its the oil coming from the paint u need to redo the walls with a non oil base paint and a mildew resistant paint made especially for bathrooms that is why u get the yellowish brown spots its the oil in the paint coming thru. Start at the bottom and work your way up to prevent additional streaks drips from appearing.

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. For the sake of my sanity in shared shower situations i ve chosen to go with explanation 1. You will also find mineral deposits remaining on the bathroom walls where it will built up over time if you do not do regular or proper cleaning and maintenance.

This is an interesting thread. When condensation from a hot shower or bath forms on the walls and begins streaking or dripping down the wall drip marks occur. The smoke and tar from cigarettes builds up on the walls and ceiling over time and eventually leads to a nasty residue that is difficult impossible to get fully cleaned off the paint. Nicotine damage occurs simply from someone using the bathroom or an adjacent room as a smoking area.

We thought at first it was something from the kids spilled something and maybe didn t clean it up right maybe spilled some kind of candy or our 6 year old niece that visits and doing something. After cleaning use the second sponge to rinse the walls with clean water.