Metal roofs, as evidenced by their 50-year lifespan, outlive asphalt shingles by more than three times their lifetime. While asphalt shingles are easier to install than metal roofing, they require regular maintenance and will need to be replaced in 15 to 30 years, which means an added cost to homeowners.
The term Modern era, Modern period, or Modern Times is used by historians to loosely describe the period of time immediately following what is known as the early modern period. It is to be distinguished from the term of Modernity. 1. The early modern period lasted from the end of the 15th century to the middle of the 18th century, circa 1450 (moveable type printing press etc) and 1492 (start of European Colonialism) to 1750 (the Enlightenment) and the beginning of the Industrial Revolution. 2.
What century do we live in? you may ask. The current century began on January 1, 2001 and will end on December 31, 2100 and is the 21st Century. Here is a list of previous centuries and when they began and ended: 18th Century: January 1, 1701 to December 31, 1800. 19th Century: January 1, 1801 to December 31, 1900. 20th Century: January 1, 1901 to December 31, 2000. 21st Century: January 1, 2001 to December 31, 2100. 22nd Century: January 1, 2101 to December 31, 2200.