What material is most commonly used for waterproofing foundations?

Asphalt is the most commonly used material for waterproofing foundations due to its excellent properties in creating a durable, water-resistant barrier. It has a viscous consistency that allows it to be easily applied to surfaces in a liquid state, ensuring a seamless coat that effectively repels water. Once set, asphalt hardens and provides a strong protective layer against moisture infiltration, which is crucial for maintaining the integrity of foundations in various environmental conditions.

Additionally, asphalt is favored for its cost-effectiveness and ease of application compared to other waterproofing materials. It can be used in various applications, including as a coating on foundation walls and as part of a membrane system to prevent water from causing structural damage. This versatility contributes to its status as a preferred choice among contractors for waterproofing foundations.