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Its mold its when your your walls get moist make sure they don't get bigger it means you have a leak in your roof!

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Q: Why do you get dark spots on the ceiling where the wall meets the ceiling?
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What is the line where the ceiling meets the wall called?

The line where the ceiling meets the wall is called a cornice. A cornice can be set off from the ceiling with the use of cornice trim. The line where the wall meets the floor is called a baseboard.


What do you call the line where a wall meets the floor and where that wall meets the ceiling?

The piece of wood that goes in between the floor and wall is called a baseboard.


Where in a bedroom would you find a right angle?

The corner. Where the floor meets a wall. Or the ceiling meets the wall. In the window sill. In a door way.


How do you fix ceiling condensation in a mobile home with shingle roof condensation is where the ceiling meets the wall in a few areas?

bird blocks and ridge vent


What geometric term describes the place where the ceiling meets a wall?

An edge. A horizontal edge, to be more precise.


What is moulding used in an angle such as where an interior wall meets the ceiling or overhanging cornice on the exterior called?

crown moulding


Air cond position in the room?

Try to position the ceiling vent so that the air washes down the exterior wall and window eliminating hot spots in the room.


Which wall should you hang a wall clock?

The ceiling.


What is a ceiling partition?

A ceiling partition is a track on the ceiling that may have a metal or wooden wall fitting into it. This divides a room by the ceiling support.


What Lines that are not in the same plane are called lines.?

Non-coplanar lines. They could be parallel or skew.For example, consider yourself facing a wall in a cuboid room. Line 1 = where the floor meets the wall in front of you, Line 2 = where the ceiling meets the wall in front of you, Line 3 = where the floor meets the wall behind you. Then Lines 1, 2 and 3 are parallel but not in the same plane.OrLine 4 = where the walls to the left and behind you meet. Lines 1 and 4 are not parallel nor in the same plane: they are skew.


How do you reinforce a wall aboce the ceiling?

Why would you need to? The wall is holding the ceiling up. A better description of what you want to do would help.


What can cause dark lines on a ceiling and wall?

It is possible for smoke from a wood heater or fireplace to attach itself to the wall where the studs are located. Somehow the studs act like a magnet, I have had this happen in three homes previously.