Plaster is typically a durable and reliable material. However, it’s not immune to developing cracks over time. You may even need to schedule plaster repair work to correct the more significant fissures. Several factors could be to blame if your plaster is deteriorating or damaged, but there are ways you can prevent problems from happening in the first place. Here’s what you should know about caring for this building material.

How Is Plaster Made?

The typical plaster recipe calls for water, lime, and sand. The ingredients are thoroughly mixed until they reach a pasty consistency. That material is applied to surfaces like ceilings and walls. Plaster is popular largely for its versatility. It can take on a more simple and conventional appearance with a smoother finish, or it can be more decorative with swirls and other ornate details.

Why Does It Crack?

Despite its resilience, plaster can crack. During installation, wood strips are nailed to the frame. The plaster mixture is applied on top of that, covering the entire surface so that it coats the spaces between the wooden strips. The plaster on top of and behind these pieces of lumber dries down to what is known as a “key.” Additional plaster is added on top for a smoother finish, but each of the layers is highly brittle. That makes them more vulnerable to cracking, even when the slightest pressure is applied.

A few cracks here and there are normal and not usually a cause for concern. However, if a fissure appears worse than before, or if it continues to spread in a diagonal direction, you’ll need a plaster repair professional to assess the scope of the problem. Newer cracks in an older home may be indicative of foundation issues. 

How Do You Prevent Cracks?

The simplest step you take is applying acrylic latex caulk to the affected area. A small bead is just enough. Using a gloved finger, massage it into the space so it slides into the opening. Use a sponge to dab away any excess residue. Once it dries, you can paint over it so it blends seamlessly. For more complex problems, turn to a professional. They can ensure plaster mixes are always thoroughly blended. Using too much water weighs down the plaster and causes it to crack as the moisture dries up.

If you seek a reliable professional for plaster repair work in Cincinnati, OH, turn to Old World Plastering. This company is led by plastering contractor Greg Colina. He and his team offer expertise in everything from statue restoration to historic preservation. Visit the website to view some of their completed projects, or call (513) 481-1122 to speak with a representative and schedule an appointment.