Casa Geometrica combined the two completely different properties of Giwa (traditional Korean roof file) and stainless steel. Geometrically, giwa is a unit of order and a system of form. It is a combination of units optimized to endure rain and snow and an economical system to build the gable shape. These tiles pair up with one another to create textural and tactual sophistication. However, the sophisticated giwa are sometimes placed on the ambiguous borderline. The curved figures of giwa cluster to form the wavy shapes and the triangular geometry of gable constructs the order of the past. How would you comprehend the rules created by the repetition of its texture and geometry and modernly reinterpret the geometric cluster of the units? They came from the geometric combination by sentimental identification. The existing geometry of red giwa and bricks contrasts with the grey tetrahedrons of black stainless steel in terms of texture and material sentimentality. The different principles of geometry share heterogeneity and homogeneity and form a contact point at the same time. It is the tension between to co-existing things with no one being superior, and the balance point created by the sentimentality of time and space.