blind

A table is given which compares the performance, construction and function of the various types of window treatment. Aspects covered include sun control, thermal insulation, infiltration barrier, security and privacy, control by static, movab

Airflow window units are a combination of energy efficient fenestration and adjustable shading device, consisting of a double-glazed outer sash and a single-glazed inner sash, with venetian or louvered blinds in between. Space air is admitted

Notes that in addition to multiple glazing and storm windows there is a wide range of insulating options available. These products include blinds, shutters, plastic films and shades. Briefly discusses the different products. Gives tables of systems showing manufacturers and performance data.