What primary method distinguished Romanesque architecture from Byzantine architecture regarding structural support?

The primary method that distinguished Romanesque architecture from Byzantine architecture regarding structural support is the reliance on walls rather than columns. In Romanesque architecture, the design often incorporated thick walls that served as both structural support and aesthetic elements. These walls were typically less pierced by windows than in Byzantine structures, which allowed for a more solid, fortress-like appearance. This structural integrity was achieved through the use of heavy stone, which created a sense of weight and permanence.

By comparison, while Byzantine architecture also utilized arches and domes, it often emphasized a lighter, more spacious feel with more windows and decorative elements, allowing for greater light diffusion within the interiors. Therefore, the focus on solid, monumental walls in Romanesque buildings effectively contributed to the overall character of this architectural style, showcasing a different approach to structural support compared to that of Byzantine architecture.