Commonly Used Foundation Drainage System
What components are typically included in a commonly used foundation drainage system?
A) a perforated drain pipe.
B) a perforated drain pipe set within a layer of crushed stone or gravel.
C)a perforated drain pipe set within a layer of crushed stone or gravel, the layer wrapped with a filter fabric.
D) a perforated drain pipe wrapped with filter fabric and set within a layer of crushed stone or gravel.
Answer:
A common foundation drainage system often includes a perforated drain pipe placed within a layer of crushed stone or gravel, which can either be wrapped with a filter fabric or the perforated pipe itself can be wrapped with a filter fabric for added protection.
Explanation:
The commonly used foundation drainage system typically consists of a perforated drain pipe set within a layer of crushed stone or gravel. Often, this layer is wrapped with a filter fabric which serves to prevent the infiltration of fine soil particles that could potentially clog the drain pipe.
Alternatively, the perforated drain pipe itself can be wrapped with filter fabric before being placed within the layer of crushed stone or gravel. This provides a dual protection system, ensuring the long-term effectiveness of the drainage system by preventing any clogging issues.
This type of foundation drainage system is commonly used to prevent the buildup of water near the foundation of a building. The perforated drain pipe allows water to drain away from the foundation, while the layer of crushed stone or gravel provides a path for the water to flow. The filter fabric helps to prevent the drain pipe from getting clogged with debris.