There are several reasons why this happens. Cracks can result from thermal movement, the settling of a foundation or sill work, or even exposure to moisture for an extended period. The extent of the crack can also vary across different plastering types.
Why Does Plaster Crack?
Cracking in plaster is a common problem that often occurs in older buildings, but it can also happen in new construction projects. Plaster cracks for various reasons, including improper application, structural movement, and moisture issues. Understanding why plaster cracks is essential for both homeowners and contractors, so they can take steps to prevent and repair cracked plaster.
One of the most common causes of plaster cracking is poor application. Plaster must be applied using the correct technique, tools, and materials to adhere properly to the wall. If the poultice is not mixed or applied correctly, or if the dressing is too thick, it can cause the application to crack. In addition, if the plaster is applied too quickly or too slowly, it can cause the plaster to crack as it dries.
Another common cause of plaster cracking is structural movement. Buildings can settle or shift as they age, causing the walls to move slightly. This can cause the plaster to crack as the wall moves. In addition, if a wall has been improperly reinforced or the foundation has been damaged, it can cause the application to break as the wall moves.
Moisture is another common cause of plaster cracking. Plaster can absorb moisture from the air and from