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Research / Report
Tuesday, February 25, 2025
SBCA Knowledge Center
Code Summary Report 2402
This Code Summary Report will provide background on the different types of inspections required including in-plant inspections, site inspections, and Special Inspections.
Technical Paper
Friday, February 14, 2025
SBCA Knowledge Center
Repairs to Field Modified Damaged Trusses TF No. 1111
As a home inspector, I have recently inspected an existing home with an attic truss system installed. Several of the truss web members have been cut away to allow access to an attic-mounted heating system.
Technical Paper
Friday, February 14, 2025
SBCA Knowledge Center
Drilled Hole in Truss TF No. 1110
I need to know how to repair a hole that has been drilled through a truss. In installing the wiring we improperly put the wires through the truss and now need to know the proper way to repair it.
Technical Paper
Friday, February 14, 2025
SBCA Knowledge Center
Truss Failure and Repair TF No. 1109
I am a professional engineer looking for information concerning the failure of metal plate connected wood trusses and methods of repair.
Technical Paper
Friday, February 14, 2025
SBCA Knowledge Center
Information on Cutting Gable End Studs TF No. 1108
Is there any information relating to the cutting of gable studs in the field to place a louver or a window over a gable trussed end wall?
Technical Paper
Friday, February 14, 2025
SBCA Knowledge Center
Cutting Trusses TF No. 1107
Our home has 2x4 roof trusses spanning 25 ft. spaced 16 in. O.C. Currently, there is limited attic storage on a plywood subfloor on the bottom chords, accessed via a small hatch in a closet.
Technical Paper
Friday, February 14, 2025
SBCA Knowledge Center
Lumber Substitution TF No. 1106
If the truss design drawing specifies using 2x4 1650F SPF, can 2x4 No. 2 southern pine be used instead? What are some things that need to be checked?
Technical Paper
Friday, February 14, 2025
SBCA Knowledge Center
Deflection of Long Span Scissors Trusses TF No. 1105
I was wondering if you have any information or anecdotes relating to the deflection performance of long span scissors trusses? We recently sold a job with 70 ft. long scissors trusses.
Technical Paper
Friday, February 14, 2025
SBCA Knowledge Center
Manufacturing Tolerances TF No. 1104
I am a structural engineer on a project with a wood trussed roof. I have noticed some variations in the peak height in a run of identical trusses. Do you have any information on tolerances for the final dimensions of manufactured trusses?
Technical Paper
Friday, February 14, 2025
SBCA Knowledge Center
Shimming or Shaving Variances in Truss Dimensions TF No. 1103
If you have the condition where you are out by the max tolerances of 1/2 in., how do you correct the situation? Do you shim the truss from the bottom? Shim from the top? I will assume you do not shave the truss off.
Technical Paper
Friday, February 14, 2025
SBCA Knowledge Center
Standard on Center Spacing TF No. 1102
What is the recommended standard spacing for open-web wood joists? I have seen them placed 24 in. O.C. Is this acceptable for a customer who will have an exercise room with 500 pounds of free weights?
Technical Paper
Friday, February 14, 2025
SBCA Knowledge Center
