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Citadel Architectural Products: Company's Envelope 2000 Helps Hotel Achieve LEED Certification


Indianapolis, Ind. — March 29, 2016 — Design flexibility and an attractive aesthetic led to the choice of metal composite material (MCM) from Citadel Architectural Products for a highly visible hotel project at the Philadelphia Navy Yard.

Envelope 2000, installed using the RainScreen (RS) attachment system, offered a durable façade for the Courtyard by Marriott, a five-story LEED-certified hotel. Citadel Architectural Products manufactures panels and systems that are on a list of approved products by Marriott.

“We started with a complete palette of materials,” said Mark Miller, RA, associate at Erdy McHenry Architecture in Philadelphia. “We tend to lean toward metal because it provides more flexibility than bricks or other materials. We can design façades with undulation, panel depth. Other materials tend to leave you with a flat façade.”

The ground floor of the facility features a dining and bar/lounge facility, a fitness room, and more than 2,000 square feet of meeting space for hotel guests and corporations within the Navy Yard. Miller said the design goal was to maintain the established façade curvature that faces the on-site park, while ensuring daylighting and views for all guestrooms.

The colors specified were Silver Metallic and two custom Silver shades, about 30,000 square feet in all.

“The exterior of the building at the guestrooms are clad in a metal composite material RainScreen system, giving the building an ever-changing skin that depends upon the time of day and amount of sunlight,” Miller said. “The RainScreen creates a system to reduce the building’s overall heat gain by using a series of sub-girts and custom aluminum clips to prevent transfer of heat to the building sub-framing."

The Envelope 2000 RainScreen system was installed by Towne and Country Roofing of Bensalem, Pa. Todd Mentasti, estimator for Towne and Country, said the panels were three different colors and laid out in specific order by the architect. Different color panels were also installed at different depths, providing some real definition to the walls.

“To be honest, when we saw the drawings we weren’t sure how it was going to look,” Mentasti said. “Once we had a section done we realized it was going to look great. When it was completed, it looked fantastic.”

The Towne and Country crew “had to pay extra close attention” to the drawings while installing the fabricated panels of different colors and depths, Mentasti said. “Some were installed 2 inches out from the deck, some 5 inches out and some at 7 inches,” he says.

Another installation challenge was the curved portion of the building at the main entrance. No panels or windows were curved, but installed in smaller segments to create the curved look. “Some of the panels were 4 feet wide, but most were smaller,” Mentasti said. “It takes more time to install more panels, but it was worth it to achieve the curved appearance. Curving longer panels would have required more time and they wouldn’t have looked the same as these segmented panels.”

Mentasti said Towne and Country routinely installs composite panels from Citadel Architectural Products and has more projects calling for them in 2016.

Citadel Architectural Products Inc. offers a complete selection of cladding solutions in the industry, ranging from high-end fabricated metal composite material (MCM) to field-assembled systems and glazing infill panels. For more information, visit


More From 4/18/2016 on FacilitiesNet