cementcoated

Cement-coated, often written as cement-coated, refers to a surface that has been covered with a cementitious layer, typically a cement-based mortar or plaster, to provide protection, durability, or aesthetic effects. The term is used across architectural, construction, and industrial contexts to describe surfaces that have received such coatings.

Cementitious coatings usually consist of cement, aggregate such as sand, water, and sometimes lime or fly ash, with optional polymers or waterproofing admixtures. They can be applied by trowel, spray, or brush, and may be reinforced with mesh or lath. Proper surface preparation, bonding agents, and curing are essential to performance.

They are used for exterior façades, interior walls, or ceilings, and as protective or decorative finishes. In structural work, cementitious coatings protect steel or concrete substrates, improve fire resistance, and reduce permeability. In restoration, they help recreate historic plaster finishes.

Advantages include durability, fire resistance, thermal mass, and wear resistance; limitations include potential cracking from shrinkage or substrate movement, need for compatible substrate, and weight considerations.

Maintenance and standards: Regular inspection for cracks, moisture intrusion, and re-coats as needed. Performance is governed by standards and codes for cementitious coatings, including bond strength and permeability tests. Related terms include plaster, stucco, render, and other cementitious finishes.