Why are barns red?

At the end of the 18th century, farmers discovered that red oxide of iron and skim milk, with lime added, made a plastic-like coating that hardened quickly and lasted for many years, giving birth to the famous American red barn.


American Barns and Covered Bridges by Eric Sloan, p. 65 (728.95 Slo).

Fast Fact Topic: 
Subscribe to RSS - Barns--color