Admitted to the Union in the year 1890, Idaho is the 43rd state of the United States. It is home to roughly 1,839,106 people, and ranks as the 14th largest state, occupying an area of 216,443 km². Due to its mountainous topography and wide variation in elevation, Idaho is a rare state that sees multiple types of climates. The most prominent of these are hot summer Mediterranean, warm, hot, humid continental, humid subtropical, cold semi-arid, and subarctic. Moreover, the state is greatly influenced by maritime situations, despite being 530 km from the Pacific Ocean. In fact, this also tends to have a moderating effect over the colder areas of Idaho.
With so many climatic zones running within a single state, it is unsurprising for Idaho to have very different types of roofing designs and materials being common and popular in different areas. Generally speaking, shingle roofs are common throughout the state - though the material used varies from one area to the other. Drier areas tend to use clay and tile, while areas that are more humid or see thunderstorm activity tend to use asphalt ones. Yet others use a combination of rubber roofing and metal roofing, and in some cases shingles that double as solar panels. In recent years, the state has seen a trend of “composite” roofs - these are custom engineered with reclaimed materials (mostly from old homes) made to simulate slate and shake ones.