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Technical Paper
Thursday, April 3, 2025
SBCA Knowledge Center
Alternate Nailing Patterns TF No. 1001
Some truss lumber repair nailing patterns call for 16d common nails. Most nail guns do not support 16d nails, but have an equivalent to a 12/10d nail. Is there a substitution guide or ESR report that could help us?
Technical Paper
Thursday, April 3, 2025
SBCA Knowledge Center
Roof Truss Nailing with Hurricane Clips TF No. 1003
If you use hurricane clips to secure roof trusses from uplift, are you allowed to use fewer than the typical three nails in the bearing heel of the roof truss?
Technical Paper
Thursday, April 3, 2025
SBCA Knowledge Center
Attachment of Scissors Trusses TF No. 1004
What is the correct method of attaching scissors trusses to the top plate? I read recently in a trade magazine that this type of truss should be toe-nailed on one end and attached with slotted clips on the other end.
Technical Paper
Thursday, April 3, 2025
SBCA Knowledge Center
Bottom Chord Dead Load TF No. 1010
I have built a 30 ft. x 40 ft. pole barn with nine 30 ft. 2x4 7/12 pitch trusses that are 5 ft. O.C. I am planning to finish out the interior and will attach 7/16 x 4 x 8 OSB sheets to the trusses for my ceiling.
Technical Paper
Thursday, April 3, 2025
SBCA Knowledge Center
Uplift Values on Truss Design Drawings TF No. 1013
I am a building inspector and I have a question on information provided on truss design drawings. What does the uplift reaction number represent?
Technical Paper
Thursday, April 3, 2025
SBCA Knowledge Center
Snow Load TF No. 1015
I am a truss manufacturer in an area of the country that often has some pretty severe winters. What are some of the things that need to be considered when designing for snow loads?
Technical Paper
Thursday, April 3, 2025
SBCA Knowledge Center
Design Loads vs Typical Loading Conditions TF No. 1016
The Corps' guide spec for wood construction requires the drawings to indicate the design forces on each truss member for the worst loading condition.
Technical Paper
Thursday, April 3, 2025
SBCA Knowledge Center
Charring of Trusses TF No. 1026
Our home caught fire last month and burned partly through a tongue and groove ceiling to the trusses. Some are charred. Our contractor did a moisture meter test.
Technical Paper
Thursday, April 3, 2025
SBCA Knowledge Center
Post Fire Retardant Treatment TF No. 1027
Is a Class A fire rating (provided by our liquid spray-on fire retardant) acceptable in certain situations?
Technical Paper
Thursday, April 3, 2025
SBCA Knowledge Center
Fire Damage Assessment TF No. 1030
How do you evaluate whether a metal plate connected truss is still usable after exposure to fire? Are there any recommended tests?
Technical Paper
Thursday, April 3, 2025
SBCA Knowledge Center
Scissors Truss Diagonal Bracing TF No. 1042
We are finding it difficult to design permanent diagonal bracing for scissors trusses. The truss is often only a few feet in depth, which does not provide adequate room for diagonal bracing.
Technical Paper
Thursday, April 3, 2025
SBCA Knowledge Center
