Ceiling cracks in plaster ceilings.
Roof leaked and niw my ceiling plaster is cracked.
If your ceilings are plastered cracks are often attributable to weathering of the plaster.
If you live in a home with plaster ceilings and you begin to see cracks they may be caused by moisture and or movement.
If they are bigger and sections of plaster are falling you will probably have to remove the plaster and replace it with a drywall section.
Lay drywall jointing compound along the crack on top of the tape.
These show up on both ceilings and walls but can be the most dangerous on ceilings.
While unattractive cracks in your ceiling usually aren t a cause for alarm unless they accompany other problems such as blackened drywall or a known leak.
If the crack is between drywall sheets along ceiling joists then use drywall screws to hold the two sheets of plasterboard immobile and approximately level with each other.
Some plaster is of poor quality and this may cause the plaster to crack and crumble.
Typically plaster ceiling cracks have two causes.
Large cracks and a bowed ceiling.
Delaminating cracks these cracks are a sign of plaster pulling away from the lath behind it.
Small cracks can be repaired by applying plaster.
Cracks in drywall can be caused by truss uplift or vibrations from an appliance such as a ceiling fan.
When plaster begins to pull away from the lath there is a chance it may fall away from the wall or ceiling and come crashing down.