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Better understanding of project nuances can lead to an improved design
Beginning with the 2015 IBC, truss deflection is reported differently.
A little forethought can prevent the potential overstress that occurs when deflection leads to rooftop ponding.
These unique truss configurations require special design considerations
Getting information up front on sprinkler systems can ease the design process.
Since I’ve become involved in SBCA, I have found one of the most valuable aspects to be all of the opportunities to learn from fellow component manufacturers and suppliers.
If you haven’t watched an SBCA webinar recently, you are missing out. You’d be surprised how much you can learn from other component manufacturers not in your market.
Many potential complaints and problems can be mitigated by an astute truss technician during the design phase.
Communication is key to a successful construction project.
Open web trusses are the ideal match with a sprinkler system, maximizing use of space and making installation easy.
Metal plate connected wood trusses are sometimes used in applications or environments that require the trusses to be designed and constructed with chemically treated lumber. The two most common types of chemically treated wood used in trusses are preservative treated wood (PTW) and fire retardant treated wood (FRTW).
Truss industry standard of care items are contained throughout ANSI/TPI 1,* The National Standard for Metal Plate Connected Wood Truss Construction. The focus of this article is ANSI/TPI 1 Chapter 2, Section 2.3.5.1 and companion Section 2.4.5.1, which require a truss designer to prepare truss design drawings (TDD) based on design criteria and requirements set forth in the construction documents. The truss industry should expect to get this information from the building designer (BD), which may include the building owner, contractor or a registered design professional (RDP). Particularly when there is an RDP for the building, the design community expects the truss industry to design components that conform to the truss framing plan and specified design parameters within the construction documents, unless instructed otherwise in writing.
The purpose of this article series is to identify truss-related structural issues sometimes missed due to the day-in and day-out demands of truss design/production and the fragmented building design review and approval process. This series will explore issues in the building market that are not normally focused upon, and provide recommended best-practice guidance.
Quality marks are not substitutes for grade marks—FRTW will include both!