Is This Happening at Your Plant?
At a recent TPI 3rd Party Audit, the In-Plant Inspector (IPI) and I were inspecting trusses coming off the line as is normal in an audit. A stacked truss caught my eye, mainly because the top plate did not line up with the plate on the opposite side of the truss. Upon careful examination, indeed...
Does the Manufacturing Facility’s Environment Affect Quality?
Can quality be determined by examining the environment of the facility manufacturing the product? It seems like the two are unrelated, but, after evaluating hundreds of facilities, quality seems to be proportional to the environment of the manufacturing. By this, I’m not saying that brand...
Compression or Tension Web Configuration—Which is Better?
On a recent Quality Assurance Audit at a large facility, we witnessed a floor truss builder carefully spacing out his floor truss webs in the allotted space available with precision and care. He was very meticulous. I asked him why he was doing that and he explained that his in-house inspector...
Do Connectors on Both Sides of a Truss Ever Need to be Placed Exactly?
Once in a while, I’m asked—Is there ever an occasion when connectors on both sides of the truss need exact placement? Well, the answer might surprise you. There are, in fact, several situations where the top face connector and the bottom face connector need to be exactly...
How Do I Choose Which Plates for a Critical Plate Inspection?
The requirement is: an inspector will, on average, inspect one critical plate for every inspection made during a week. That requirement is the baseline number for the quantity of critical inspections to perform—but because some trusses do not have critical plates, it’s necessary to...
What Decisions Should Truss Builders Be Able to Make?
In the November 2017 article, “So Who Exactly is Responsible for Lumber Quality?”, we discuss the abundance of quality building materials and the responsibility of the fabricator to evaluate their application in products. We should recall the ultimate decision maker in determining...
How Should Defects Be Recorded When Inspecting a Critical Plate?
A critical plate is a plate with a Joint Stress Index of 80% or greater. The ANSI/TPI 1–2014 Standard stipulates that critical plate inspections must be conducted when completing the three inspections per station/per shift/per week requirement. On average, the standard requires one...
How Does a Fabricator Gain From a 3rd Party Audit?
When a 3rd party inspector inspects a licensed plant, what exactly are the auditors looking for? And what can the fabricator get from the experience?
What the inspection is NOT, and why that matters:
The part 1 audit of the in-house paperwork is not a grade on neatness. It’s an...
Is Automation the Right Direction to Take?
After recently upgrading to a newer vehicle, I have been amazed at the new safety features. While it’s not self-driving, the features are definitely approaching an autonomous car. The basic functions are things like active cruise control with the “stop&go” function, which...
How Important is Angulation? Why is It Important?
Per ANSI/TPI 1–2014, National Design Standard for Metal Plate Connected Wood Truss Construction, plates should be installed within a 10 degree tolerance. So what happens when the plate is rotated and exceeds this requirement?
The simple answer is: the configuration and design of...