A B S T R A C T This paper presents the first comprehensive study of Guastavino spiraling staircases, combining construction history, field documentation, and structural analysis. After outlining the origins, construction methods, and structural behavior of thin-tile vaulted staircases in the Guastavino tradition, the study focuses on the paired helicoidal staircases of the Cathedral of St. John the Divine in New York City. Archival research is integrated with on-site inspect

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

A picture-perfect day on the course: Golfers gather at Old Westbury Golf and Country Club before heading out for a day of friendly competition, camaraderie and giving back. It’s official. The 18th annual Golf Classic hosted by The Skyline Charitable Foundation on June 29, 2026, at the Old Westbury Golf and Country Club on Long Island broke its record in fundraising by bringing in over $350K, surpassing previous totals by over $30K! Even before the final numbers were tabulated