Abstract: An adjustable thermal shield adapted for installation upon residences, office buildings, mobile homes, recreational vehicles and other structures or objects having areas such as glass walls, windows and the like, for which enhanced thermal efficiencies are either desired or required. Each shield comprises a panel formed of rigid plastic foam which is encased in a specially prepared fabric to provide a skin-tight cover having an extending flap to provide pivot means between the panel and a like panel or the installation assembly, as the case may be.