kartonpiyer
Kartonpiyer is a decorative interior molding made from a gypsum-based core reinforced with paper, shaped into cornices, moldings, friezes and ceiling borders. The name literally reflects its paper backing, though the finished pieces are rigid and durable. Profiles range from simple edges to ornate cornices and medallions, and are sold in sections that can be cut to length on site.
Installation is straightforward: pieces are fixed to walls or ceilings with gypsum-based adhesive and, if needed,
Advantages include reduced weight, faster installation, lower cost, and ease of maintenance. Kartonpiyer is widely used
Limitations involve sensitivity to moisture; prolonged exposure to damp environments can cause sagging, warping or damage
Historically, kartonpiyer developed as a plaster-alternative option in the 20th century and remains a popular choice