SBCA Knowledge Center

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

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

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

Temporary Bracing Documents TF No. 1049

Is it common practice for the supplier/distributor of a truss to provide a publication regarding temporary bracing with the delivery of the material?

Technical Paper

Thursday, April 3, 2025 SBCA Knowledge Center

Moisture Content Equilibrium and Truss Movement TF No. 1057

How long does it take the moisture content to stabilize in a wood truss? I live in southern California. Also, how much deflection should be expected in a scissors truss over a partition wall?

Technical Paper

Thursday, April 3, 2025 SBCA Knowledge Center

Metal Connector Plates Peeling TF No. 1066

I am investigating a roof failure in a 22-year-old structure. The connector plates have peeled open like a banana skin in several instances. The teeth do not appear sheared or torn at the wood surface.

Technical Paper

Thursday, April 3, 2025 SBCA Knowledge Center

Truss Uplift TF No. 1074

What is truss uplift?

Technical Paper

Thursday, April 3, 2025 SBCA Knowledge Center

Transforming Attic into Living Space TF No. 1076

We are looking into developing the attic space above our garage into a media room. The garage is attached to the home and we would enter this area from the living room.

Technical Paper