Supported by aluminum lattices throughout the building's facade, the sunscreens are made of Rohm and Haas's principal product, Plexiglas.

[3] In 2007 the Rohm and Haas Corporate Headquarters was listed on the National Register of Historic Places and today is considered one of the best examples of the International style.

[4] The Rohm and Haas Corporate Headquarters was conceived as part of the city of Philadelphia's plan to improve and revive the area around Independence Hall.

"[3] Federal funds for private investors investing in urban renewal land was also a significant factor in Rohm and Haas's decision to stay in Philadelphia.

[2] In 1959 Rohm and Haas, the first private investor to build on the Independence Mall, first commissioned Philadelphia-based George M. Ewing Co. to design their new headquarters.

Ewing's design was met with a poor response from the City Art Commission, and Rohm and Haas decided on using a leading architect and approached Pietro Belluschi.

The company spent two years deciding whether to renovate its current building or to move to cheaper, more modern space in Center City.

[4] The dining area was moved from the basement to street level in a space that was previously occupied by a bank, but had lain vacant for several years.

Supported by a bronze anodized aluminum lattice, the sunscreens are made of Rohm and Haas's principal product, Plexiglas.

The use of sunscreens and dark colors gave the facade a textured pattern and overall effect of avoiding making the building appear oversized.