To preserve a national landmark, curators were anxious to protect the furnishings, draperies, artwork, paneling, and floors from the damaging ultraviolet rays of the sun.

The task: to incorporate solar control—diminish heat and glare—in the individual segments of this aesthetically pleasing but complicated glass arrangement.

The increase in wall space given over to windows has created the need to control the amount and quality of light entering the home.

“Since the LLumar film was installed, the improvement in our ability to control and maintain temperature has been dramatic.”

An energy producer is also energy conserver.

With paintings, sculptures, and graphic arts dating from the Middle Ages to the present, too many of its exhibits were exposed to damaging ultraviolet sunlight…

A building’s impressive exterior windows leave its interior office space simmering in summer heat.