Ceilings·4 questions

Ceilings: how to level the ceiling and avoid peeling?

Answer

High-quality ceiling leveling is the key to a beautiful and durable renovation that will not require restoration in just a few months. The answer to ceiling finishing always starts with safety and checking engineering communications, such as hidden wiring, pipes, or ventilation shafts, and only then moves on to decorative finishing. This approach reduces the risk of damaging hidden communications and prevents serious problems in the future.

The main reason for plaster or putty peeling from the ceiling slab lies in the violation of the application technology and poor preparation of the base. To avoid such troubles, it is necessary to thoroughly clean the surface from residues of old materials and dust. A mandatory step is the application of a deep-penetrating primer in two layers with intermediate drying, which strengthens the base and ensures reliable adhesion of finishing materials to concrete.

To ensure that ceiling leveling is strong and durable, it is recommended to perform the work according to the following instructions.

Check ceiling height differences using a laser or water level to determine the maximum application layer of the mixture.
Fix metal corner beads/beacons across the entire ceiling area using a building level to obtain a perfect plane.
Apply the first base layer of plaster based on gypsum or cement, distributing it with a straightedge along the beacons.
After the base layer sets, remove the beacons, seal the chases, and let the surface dry completely for several days.
Apply finishing putty in a thin layer, thoroughly sand it after drying, and prime it before painting.

Maintaining the temperature regime and humidity in the room also plays a critical role in preventing peeling. Avoid drafts and sudden temperature changes during the drying of plaster and putty compositions. Such an attentive and technological approach to ceiling leveling guarantees the monolithicity of the coating and its flawless appearance for years to come.

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