Problem: You are required to select a case study, consisting of an old existing low-rise housing building, with a date of construction before 1992 (30 years old), and discuss various aspects regarding the construction system, structural characteristics, relevant materials, signs of degradation of materials, existing building defects, and building performance fallures. Possible buildings Include detached or semi-detached houses or flat buildings up to five stories, built before 1992. Show less.