Glued Trussed Floor Joists Tuomo Poutanen In this publication, I reviewed glued parallel chord truss joists (or glued-joint open web wood trusses) in the August 2021 issue and glued roof trusses in the April 2023 issue. This article focuses on parallel chord glued trussed floor joists utilizing the new G-technology,... Read More August 2024 Issue #16301 Page 84
Glued Roof Trusses Tuomo Poutanen In my previous article, The Evolution of Glued Trussed Joists, in the August 2021 issue, I explain that glued trusses have potential in floors. The new G-joist has high resistance. The chord shear failure is eliminated as the web finger punches the chord. The web-chord glue area is big. The mean... Read More April 2023 Issue #15285 Page 94
Truss Plates and Nail Inventions from Finland Tuomo Poutanen In his series on The Development of the Truss Plate, Joe Kannapell is recounting many interesting details on the evolution of truss plates in the U.S. For another perspective, this article will focus on eight relevant nail plate truss inventions from Finland —two made by Matti Turulin, two... Read More March 2023 Issue #15284 Page 86
The Evolution of Glued Trussed Joists Tuomo Poutanen I-joists dominate the joist market due to their high material efficiency and low manufacturing cost. However, this product has disadvantages, including difficulty in HVAC installations and the possibility of bottom chord support only. Therefore, the market would pay a considerable premium for a... Read More August 2021 Issue #13265 Page 86