Admitted to the Union in the year 1848, Wisconsin is the 30th state of the United States. It is home to roughly 5,893,718 people, and ranks as the 25th largest state, occupying an area of 169,640.0 km2. The state largely enjoys a warm-summer type humid continental climate (with hot summers and freezing winters), with the exception of the southwestern and southern parts, which has a hotter humid continental climate (which is warmer). Interestingly, despite its warmer climate, snowfall during winters is quite regular, at 160 inches - most of which is concentrated in the snow belt areas near Lake Superior.
The main requirement for Wisconsin residents is to have a roofing system that can weather the fluctuations between seasons and varying temperature and humidity levels. Add to it the fact that people tend to prefer ones that can be built quickly and are cost efficient and it comes as no surprise that asphalt is the most popular. Asphalt shingles can be plain, can come with architectural roofing (i.e., they have adding texturing or embossing for better curb appeal), and can even use impact-resistance coatings to avoid hail and storm damage. Popular non-asphalt roofing systems include slate and clay. In recent years, solar roofs have become more popular, as they serve the dual purpose of protection and temperature control, while making the home independent power supply-wise.