At the corner of Broadway and 11th Street, the Cast Iron Building stands as a remarkable survivor of a pivotal era in New York City’s architectural and commercial history. Designed by John Kellum and completed in 1868, the seven-story building was originally home to a prominent dry goods retailer in the Ladies’ Mile shopping district. Its ornate cast-iron façade reflected the innovation of the era, offering strength, durability, fire resistance, and intricate architectural de

This article was originally published as follows and is republished here under the Creative Commons Attribution (CC BY) license: Michiels, T., Gasha, A., Sibille, L. and Olivieri, C., 2026. Guastavino spiraling staircases: Construction history, documentation, and structural analysis through the case of St. John the Divine. International Journal of Engineering Science, 228, p.104641. A B S T R A C T This paper presents the first comprehensive study of Guastavino spiraling stai

This summer was a busy one for Skyline Restoration, filled with opportunities to connect, collaborate, and spend time with the people who make our industry what it is. From our Skyline Fishing Trip and Golf Outing to IIBEC’s Golf Outing and Summer Social, PWC’s Summer Social, and the IIBEC & NWIR Mentorship Day, our team was proud to be part of so many great events throughout the season. Whether we were hosting our own events, supporting industry organizations, strengthening