Ornamental plaster is a timeless design feature that adds character to ceilings, walls, and other parts of buildings. It’s often seen in historic properties and is crafted in casts. If you’ve purchased a property or are designing a new structure with this feature, use the following guide to learn more about how to preserve it.

What Are the Causes & Signs of Ornamental Plaster Damage?

Moisture is the primary threat to ornamental plaster. A leak causes a yellow-brown hue and often streaks down the wall below the ornamentation. The material may also flake or crack. Mold may even grow on it in warm, damp conditions.

Temperature fluctuations can cause similar damage. As molecules expand and contract in extreme hot or cold swings, they create internal divisions and stress that may crack the material. 

Foundation settling is a common issue in older properties. Buildings slowly sink into the ground over the years, and the soil beneath shifts from the stress of adjacent structures. These slight changes can crack walls and other features the ornamental plaster is attached to.

How Is it Repaired or Replaced?

Professionals can repair the decorative plaster by first patching areas where only the top layer of the cast has peeled or where surface cracks are. They can then resculpt it into the original shape.

Deeper fractures and structural weaknesses from prolonged water damage are often unrepairable. The crumbling sub-layers simply won’t support the surface patch. Instead, landmark restoration professionals will remove the section, recreate a new plaster casting, and install it to the wall, arch, or ceiling.

Schedule yearly plumbing inspections and to prevent or address leaks. Ensure the surface remains free of dirt and dust, and stabilize indoor temperatures with a heating and cooling system throughout the year to preserve the ornamental plaster.

If you’re searching for an ornamental plaster specialist for your building, contact Ionic Casting of Long Island City, NY. These experts have repaired and created stunning work for over 50 years. This second-generation family-owned business creates custom columns, ceilings, and plaster mouldings for commercial clients. Explore their work and services on their website and connect on Facebook to view their previous projects. Schedule a consultation by calling (718) 786-7670 today.