What Causes Cracks In Drywall Seams

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.

What causes cracks in drywall seams.

Additionally drywall cracks are often found where two pieces of drywall are butted together. Usually the seams are invisible due to the use of drywall mud and tape. Cracks in the ceiling can be cosmetic or indicative of a serious structural problem. Some drywall mud products are intended only for second or third coats.

Wall cracks are fairly common in both new and older homes and are often the result of normal house settling that can quickly inexpensively be remedied by re taping the joints the seams. The back to front dimension is 30 which means there are over 7 sheets of drywall. Usually the seams are invisible due to the use of drywall mud and tape. I installed the drywall in 2007 and the crack first appeared about 4 years ago.

Usually the crack will be very straight because it is at the edge of the tape. Temperature fluctuations can cause the drywall to expand and contract creating stress that cracks the seams. Most drywall cracks occur on the seams where two pieces of drywall meet. The long edge is 19 long.

This is the least noticeable of the vertical cracks and can often be repaired with a coat of paint. Drywall cracks in ceilings or walls. Vertical cracks above the corners of a window or door indicate the builder placed a drywall seam at these corners. These joint areas are weaker than in the center or field area of the drywall therefore some cracks may occur at these joints.

Straight cracks at taping joints. One reason drywall cracks is because the wrong type of drywall mud was used when taping the seams. Here s how to determine the cause of your ceiling cracks and fix them. Most drywall cracks occur on the seams where two pieces of drywall meet.

Causes of drywall cracks. 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. The shrinkage of the header causes a crack from the corner of the opening to near the ceiling. We have a crack at the long edge seam of the drywall in the ceiling.

The mud fills in the seam and the tape covers it up.