This occurs because there is a joint which gets drywall taped and then layered with two or three coats of drywall mud.
Cracks in drywall seams after attic.
If the crack is on a vertical or horizontal seam carefully widen the crack with the corner of a paint scraper utility knife or chisel to determine if the crack extends completely through the paper that is covering the seam image 1.
House settling and temperature or moisture fluctuations in an attic which result in the expansion or contraction of framing members.
Cracks in your drywall or plaster interior walls could be the result of.
Repairing cracks in walls the best way to repair a crack in drywall is to re tape the joint.
I installed the drywall in 2007 and the crack first appeared about 4 years ago.
Some drywall mud has more adhering ability and should be used when taping drywall whereas other types of drywall mud should only be used in finishing.
We have a crack at the long edge seam of the drywall in the ceiling.
These joint areas are weaker than in the center or field area of the drywall therefore some cracks may occur at these joints.
Some drywall mud products are intended only for second or third coats.
Additionally drywall cracks are often found where two pieces of drywall are butted together.
The mud fills in the seam and the tape covers it up.
Usually the seams are invisible due to the use of drywall mud and tape.
One reason drywall cracks is because the wrong type of drywall mud was used when taping the seams.
Illustrations show where cracks are most likely to appear explain why and suggest both repair approaches to drywall cracks and how to prevent cracking in plasterboard or gypsum board.
This involves scraping away the loose tape and crumbled bits of drywall mud sanding the surface smooth.
This article describes the common causes of all types of cracks that appear in drywall or gypsum board or plasterboard walls ceilings in building interiors.
Drywall cracks in ceilings or walls.
The long edge is 19 long.
Most drywall cracks occur on the seams where two pieces of drywall meet.
Typically plaster ceiling cracks have two causes.
When a crack appears it is usually on a seam where two drywall sheets meet and it is easily fixed.