Fasadgeometri

Fasadgeometri is a term used in architectural discourse to describe the study of the geometric properties and configurations of building facades. It covers the shapes, arrangements, and spatial relationships of exterior surfaces, including flat planes, curved forms, and free‑form envelopes. The field aims to connect aesthetic considerations with functional requirements such as daylighting, solar shading, ventilation, and structural behavior. While not universally standardized as a separate discipline, fasadgeometri is practiced as an integrated aspect of architectural design and envelope engineering.

Core concepts include modules and rhythmic repetition (bays, mullions, and panels), tiling and perforation patterns, perspective and projection geometry for visualization, and the interaction of facade geometry with site context and urban form. The study also analyzes how geometric choices influence manufacturability, cost, and assembly, as well as performance criteria like glare control and heat gain.

Methods and tools: computational geometry, parametric design, and BIM-based workflows enable designers to explore many geometries rapidly. Common software platforms support parametric modeling, tolerances, and daylight simulations to evaluate performance across hemispherical sun positions and seasons. Historical and contemporary works show a spectrum from orthogonal grids in classic facades to complex multi‑faceted surfaces in modern curtain walls.

Related topics include architecture, facade design, geometry, and computational design.