Definition

Noun: A storm sash is a secondary window frame, usually containing glass or a transparent material, installed on the exterior of a primary window. Its primary function is to provide an additional layer of insulation and protection against severe weather conditions, such as winter cold, wind, rain, and snow.

Usage

A storm sash is used to improve a building's energy efficiency and weatherproofing. It is typically installed seasonally or permanently over an existing window. * Installing storm sashes can significantly reduce heating costs in the winter. * Before the hurricane, they secured the storm sash over the living room window. * The old storm sash was removed in the spring to allow the main window to be opened.

Advanced Usage

• Historical Context: In older architecture, especially before the widespread use of double-pane insulated glass, storm sashes were a common and essential feature for thermal comfort.
• Technical Specification: A well-fitted storm sash creates a dead air space between itself and the primary window, which acts as an insulating barrier.

Variants and Related Words

• Storm Window: This is the most common synonym for "storm sash." The terms are often used interchangeably, though "storm sash" can sometimes refer specifically to the frame and pane unit itself.
• Secondary Glazing: A more modern or technical term for any secondary window unit added for insulation or soundproofing, which includes the function of a storm sash.

Synonyms

• Storm window
• Secondary window
• Insulating window

Antonyms

• Single-pane window
• Primary window (when referring to the main, unprotected window)

Noun

1. a window outside an ordinary window to protect against severe weather or winter