Condensation is the enemy of stained glass

Vaisala HUMICAP® Transmitters monitor RH & temps to prevent condensation

G-HVAC-KN-St_PatricksOnline. — Condensation between window panes can be annoying to everyone, but it can be fatal to stained glass. In the case of St. Patrick’s Cathedral in New York, improving preservation of the French, English, and American stained glass windows was a part of a major restoration project.

Learn how Vaisala’s equipment helps to monitor humidity and temperature conditions in the cathedral to preserve art and artifacts.

Fighting Back with Science Arthur Femenella, President of New Jersey-based Femenella & Associates, is part of an international team of distinguished stained glass restoration experts who are developing a strategy to extend the life of the Cathedral’s stained glass.

Femenella is recognized around the world for his expertise in conserving and restoring stained glass made by artists such as Louis Comfort Tiffany, John LaFarge, and Frank Lloyd Wright for a long list of institutional and private clients. With an education in physics and nearly 40 years of experience in stained glass restoration,

Femenella’s expertise connects the art to the science of preservation.

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St. Patrick’s Cathedral is the largest Gothic-style Catholic cathedral in the United States, the seat of the Archbishop of New York, and an active parish. Its construction began in 1858 but was suspended during the Civil War. Construction resumed in 1872 and the church was dedicated in 1879.
This white marble New York City landmark is located on East Fifth Avenue between 50th and 51st
Streets in mid-town Manhattan. More than 5.5 million people visit each year to see its architecture,
altars, stained glass windows, and sculptures.
It houses a replica of Michelangelo’s Pieta that is three times the size of the one in Rome. Many notable Masses have been celebrated in the Cathedral, including Funeral Masses for presidential candidate and U.S. Senator Robert F. Kennedy and baseball greats Babe Ruth and Joe DiMaggio.
The Cathedral’s stained glass windows were made in France, England and America. The great
Rose Window was a major work by the famous American stained glass artist Charles Connick.

Vaisala’s reliable and accurate HVAC sensors are designed with energy efficiency in mind, whether in optimizing cooling towers or demand-controlled ventilation. Our HVAC meters measure CO2, humidity, and temperature and they can be used indoors and outdoors, and installed on walls or in ventilation ducts.

Vaisala Corporation
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Helsinki, Finland

Phone +358 9 89491

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