Which homes are reported to have a 66% chance of containing lead-based paint?

Homes built between 1940 and 1959 are reported to have a 66% chance of containing lead-based paint. This period is significant because lead-based paints were commonly used in residential properties up until their ban in 1978. During the 1940s and 1950s, the use of lead in paint reached its peak, especially after World War II when there was a surge in new home construction. This makes homes from that era particularly at risk for having lead-based paint, as they were often painted with materials containing lead to improve durability and speed of drying.

In contrast, homes built before 1940 may have an even higher likelihood of containing lead-based paint, while properties constructed after 1978 are generally considered safe from lead paint hazards due to regulations banning its use. Those built between 1960 and 1978 are also at a lower risk than those from the 1940s and 1950s, translating to a lesser chance of containing lead-paint materials. Therefore, the 66% statistic specifically highlights homes constructed during the mid-20th century.