It can be seasonal shrinkage.
Roof leaked and niw my ceiling plaster is cracked.
If the leak is intermittent or slow the drywall around the crack may discolor because wet drywall is a favorite breeding ground for mold.
Ceiling cracks in plaster ceilings.
We put on a new roof and fixed the ceiling scraped mudded painted.
Age of the house.
That was a year and half ago.
Another sign of a water damaged ceiling is swelling or bubbling.
3 cut short pieces of self adhesive fiberglass mesh joint tape and cover the groove with them.
All buildings regardless of when or where they were built and with what material are subject to movement.
Using a medium bristle brush scrub the area with a solution of water and tri sodium phosphate tsp or a non phosphate detergent.
I d say the area was about 3 square feet.
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.
Ceiling cracks become more of a red flag if there are other signs that the house may have movement or structural problems.
Because wood is flexible and plaster is not you will have cracks form in the ceiling following the join lines of the plasterboard sheets.
Roof leaking from heavy rains toilet overflowing from upstairs bathroom pipes leaking and condensation line leaking are a few causes.
Discoloration sagging drywall or buckling plaster and dripping water from your ceiling might make you think that the ceiling itself is leaking in reality water coming from the ceiling is a symptom of some other home system that is actually leaking.
If you live in a home with plaster ceilings and you begin to see cracks they may be caused by moisture and or movement.
The plaster ceiling in my 1949 home sustained water damage from a roof leak discoloration bulging flaking falling etc.
Small cracks can be repaired by applying plaster.
2 blow out the plaster dust.
House settling and temperature or moisture fluctuations in an attic which result in the expansion or contraction of framing members.
Typically plaster ceiling cracks have two causes.
When a ceiling shows signs of water damage and dripping water the place to look is in one of two home systems.
When the ceiling looks like it is bulging out it means there is an accumulation of moisture into the wood and drywall.
As a building becomes older the tiny cracks caused by the continual onslaught of different forces on the house combine and magnify and eventually become visible.
The drywall itself may also be spongy and it may sag.
Cracks that develop quickly may be warning you about a leak in an upstairs plumbing fixture or in the roof.
5 mix setting type joint compound and apply it over the tape and groove.
How to know when ceiling cracks are structural or just old.
