Final answer:
Clay tile roofs are not recommended for the west coast as they are prone to damage during earthquakes due to the heavy tiles that can become dislodged.
Step-by-step explanation:
Clay tile roofs are not a good option for the west coast primarily because they are susceptible to earthquakes. During an earthquake, the heavy tiles can become dislodged and cause more damage to the structure, making them less ideal in seismically active regions such as the west coast of the United States. Additionally, considering traditional adobe houses, which are common in some western regions, earthquakes have historically been a significant threat, leading to the collapse of many structures. These adobe structures typically had flat roofs, which worked well in dry climates for capturing rainwater and preventing unnecessary heat capture, but they would often be vulnerable to the structural stresses caused by seismic activity.
The roofs of gymnasiums and churches tend to fail more frequently in earthquakes than those of family homes because they usually have larger, more complex roof structures that are less stable during seismic shaking. These buildings often have wider spans without enough lateral support, which can lead to failure during an earthquake