The Last Word: Where to Cull Lumber Joe Kannapell, PE Component manufacturers have long been in search of “any practical technology that can lessen rejects”[1] when fabricating trusses from our imperfect supply of lumber. New machines and processes have increased material throughput, but they have also increased the time lost when... Read More July 2024 Issue #16300 Page 152
Wall Panel Technology, Part III: A Dash of Software Joe Kannapell, PE By 1980, many component manufacturers were anxious to computerize their wall panel work, but they weren’t getting much help. Gang-Nail’s AutoPan was the only available solution, but it had such a steep learning curve that Gang-Nail no longer promoted it. Plus, they were singularly... Read More June 2024 Issue #16299 Page 10
The Last Word: How Technology Can Enhance Our Lives Joe Kannapell, PE In June 2020, my column in these pages, “Fast Walking Through the Corona Crisis,” included a discussion on my Apple watch. At the time, I was impressed to discover how it could record our physical movements, and how it used our past experience to inspire us to be more active. Even... Read More June 2024 Issue #16299 Page 150
Wall Panel Technology, Part II: Panel Equipment Proliferates Joe Kannapell, PE The demand for wall panel equipment after World War II was unprecedented, even to this day. Industrialization was in the air, and factory-built wall panels became the gateway, even before roof trusses. Most of the action was in the affordable housing sector, driven by the mobile home, modular,... Read More May 2024 Issue #16298 Page 10
The Last Word: How to Repair a Bridge Truss, or Any Sagging Truss Joe Kannapell, PE When a ship hit the Francis Scott Key Bridge in Baltimore, MD, its fate was never in doubt. But that was not the case when a barge hit the Eads Bridge near St. Louis, MO, another steel arched truss bridge. The Key Bridge lost one of its main supports, while the Eads Bridge lost one of its truss... Read More May 2024 Issue #16298 Page 150
Wall Panel Technology, Part I: Wall Panels Become Components Joe Kannapell, PE Driven by the dire shortage of housing entering the 1950s, Levittown sparked a fervor for homes to be built like cars on assembly lines. Fortunately, there was a crop of returning veterans ready to oblige, whether by building whole houses or just parts of houses. William Levett delved into... Read More April 2024 Issue #16297 Page 10
The Last Word: How Gene Frogale Continues to Lead Us into the Future Joe Kannapell, PE Before SBCA “signed off” on 2022–2023 President Gene Frogale’s stellar leadership, he was already developing a new product to benefit component plants. Now, as he is working on an innovative insulated wall stud, the only evidence of his prior accomplishment, a large... Read More April 2024 Issue #16297 Page 146
Wall Panel Technology Prequel: Birth of the Component Industry Joe Kannapell, PE Prefabricated wall panels made their first big impact under a government program in World War II. In 1942, the federal government began contracting with 50 existing prefab housing plants to deliver dwellings for 42,000 wartime workers. Since this work was highly repetitive and required rapid... Read More March 2024 Issue #16296 Page 10
The Last Word: Removing the Achilles Heel of Jigging Joe Kannapell, PE Until recently, vertical members have been the bane of all jigging systems, whether they occur on the perimeter or the interior of trusses. And they are found more than ever on apartment and residential designs. Handling these members without human intervention has been the Achilles heel of... Read More March 2024 Issue #16296 Page 146
Floor Truss Technology, Part IX: Floor Finale Joe Kannapell, PE To complete this floor series, it’s worth examining how we’re doing against I-joists. [For all graphs and images, See PDF or View in Full Issue.] Mixed Signals: Many CMs think trusses are slowly making gains, and this is backed up by the brisk sales of floor machines. However,... Read More February 2024 Issue #16295 Page 10