External Moldings
Definition
Concept of external moldings
External moldings are architectural elements that are placed on the facades or exteriors of buildings and constructions with the purpose of beautifying, protecting and giving character to the architectural design. They function as decorative finishes that highlight lines, shapes and details, providing volume and texture to exterior surfaces.
In addition to their aesthetic function, external moldings can contribute to the protection of structures against climatic agents, diverting rainwater and preventing leaks. They are used in different architectural styles and can vary in size, shape and material depending on the design and desired function.
Materials for external moldings
Traditional materials
Historically, external moldings have been primarily made of stone and wood. Stone, such as marble or quarry, offers a noble and durable appearance, ideal for classic or monumental constructions. Wood, for its part, is versatile and easy to work with, although it requires special treatments to resist the elements.
The use of these traditional materials responds to their availability and physical characteristics, but also implies periodic maintenance to preserve their integrity and aesthetics, especially in environments with extreme climates or high humidity.
Modern and synthetic materials
With technological advancement, moldings made of synthetic materials such as polyurethane, PVC and composite resins have emerged. These materials stand out for their lightness, resistance to humidity, insects and climate changes, in addition to facilitating installation and reducing costs.
Polyurethane moldings, for example, are highly flexible and can replicate complex designs in great detail. On the other hand, PVC offers excellent durability and is widely used for exterior finishes that simulate wood or stone without its maintenance drawbacks.
Likewise, there are prefabricated concrete or molded mortar moldings, which provide great structural resistance and adaptability to contemporary designs.