What type of pipe should be used for foundation drainage?

The use of bottom perforated PVC pipe for foundation drainage is advantageous because it is specifically designed to allow water to flow into the pipe, facilitating proper drainage away from the foundation. The perforations in the pipe walls enable groundwater or surface water to enter the pipe, which helps prevent water accumulation around the foundation. This is crucial in avoiding water-related issues such as erosion, basement flooding, or structural damage caused by hydrostatic pressure.

Additionally, PVC is a material that resists corrosion and is lightweight, making it easier to handle and install compared to other materials. It also has a lower friction coefficient, ensuring efficient water flow.

In contrast, options like steel pipe may be more durable under certain conditions, but they are prone to rust and corrosion over time, making them less suitable for direct contact with moisture. ABS pipe, while durable, is not typically used for foundation drainage as it does not have the same perforated variations as PVC. PVC Schedule 40, although strong and reliable for many applications, is generally solid with no perforations, limiting its effectiveness for drainage purposes.

Using bottom perforated PVC pipe specifically addresses the needs of effective foundation drainage by providing an open channel for water to escape, maintaining the integrity of the structure.