Window Sub-Sill

Definition

A Window Sub-Sill is a component anchored to wall construction and located just below the window sill to receive the window sill.

Purpose

The purpose of a window sub-sill is to provide additional support and a secure base for the window sill, ensuring stability and proper drainage.

Examples of Use

• Residential Construction: Supporting window sills in homes.
• Commercial Buildings: Providing a stable base for larger window installations.
• Renovations: Installing sub-sills during window replacements or upgrades.

Related Terms

• Sill: The horizontal member at the bottom of a window.
• Flashing: Material used to prevent water infiltration around windows.
• Frame: The structure that holds the window assembly in place.

Notes

Window sub-sills must be properly installed and aligned to ensure effective support and drainage. They are often made from durable materials to withstand environmental conditions.