Wash

Definition

Wash refers to the slant upon a sill, capping, etc., to allow water to run off easily.

Purpose

The purpose of a wash is to prevent water accumulation and damage by ensuring that water runs off surfaces quickly. It is crucial in protecting buildings from water infiltration and decay.

Examples of Use

• Window Sills: A slanted surface ensures rainwater does not pool and cause damage.
• Capping Stones: Used on walls and parapets to direct water away from the structure.
• Roof Edges: Designed with a wash to guide water into gutters and away from the building.

Related Terms

• Slope: The angle or gradient of a surface.
• Drainage: The removal of excess water from an area or structure.
• Waterproofing: Techniques and materials used to prevent water penetration.

Notes

Proper design and implementation of wash surfaces are essential in construction to prevent long-term water damage and maintain the integrity of buildings.