Final answer:
In block foundation waterproofing, the parging coat represents the first layer of cement plaster, providing a smooth and impervious surface to aid in further waterproofing.
Step-by-step explanation:
In reference to block foundation waterproofing, the parging coat would be the first layer of cement plaster. Parging is the application of a thin layer of mortar over concrete or masonry for refinement of the surface.
The process involves applying a coat of this plaster to create a smooth, impervious surface that helps to waterproof and protect the block foundation from water penetration and damage.
It is important to apply parging before any other waterproofing treatments, as it acts as a preparatory layer that helps other waterproofing materials, such as sealants or membranes, to adhere properly and work effectively. Once the parging has dried, additional waterproofing measures can then be applied.
When waterproofing a block foundation, the parging coat is applied as the first layer of cement plaster. It provides a smooth, level surface and helps to prevent moisture from penetrating the foundation walls. The parging coat is typically applied after the block work is complete and before any other layers or finishes are added.