What is a Tension Tie?
What is a tension tie?
Good question! All trusses have two simple forces that need to be resolved – compression and tension. The compression is developed when a roof truss is loaded, for instance when it snows and puts a gravity load on the roof. That gravity load tries to make the roof flatten and push the walls out. Of course the walls can’t push out, they have to be held in by tension, the other force in a truss. A tension tie does that work. All trusses loaded by gravity have tension in the bottom chord. Sometimes the tension tie is a solid wood bottom chord, other times it is a steel rod, like in the image shown below.