SBCA Knowledge Center

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

Trusses Exposed to the Elements TF No. 1047

We are having a house built and on a recent visit we brought along a friend who builds houses for a living. He noticed that the trusses were wet and a bit moldy. The wood seemed warped, brown, and had white splotches on it.

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

Comparison of Stick and Component Framing TF No. 1077

Does SBCA produce any products detailing how to market and sell roof and floor trusses to builders for whom stick framing has been the standard way of building? Products that detail the cost savings when compared to traditional stick framing?

Technical Paper

Thursday, April 3, 2025 SBCA Knowledge Center

Energy Heels TF No. 1082

What is the definition of an energy heel?

Technical Paper

Thursday, April 3, 2025 SBCA Knowledge Center

Bouncy Floor Trusses TF No. 1086

We are experiencing problems with bouncy wood floor trusses. I'm wondering what the industry standard is on deflections (live and total load). Also, do you have any ideas on how to decrease the deflection without affecting the profit margin significantly?

Technical Paper

Thursday, April 3, 2025 SBCA Knowledge Center

Long Term Performance of Metal Plate Connected Wood Trusses TF No. 1088

How do trussed roofs perform in long-term service? Are there any reports of rusting in the nail plates, rot/insect attack, do-it-yourself modifications, or condensation and ventilation problems in the attic?

Technical Paper

Thursday, April 3, 2025 SBCA Knowledge Center

Drywall Cracking Under Scissors Trusses TF No. 1091

We keep having problems with dry wall joints raising on the vaulted bottom chords in the track homes that we are building. The joints run from front to back of the house and the trusses bear on the side walls.

Technical Paper