Depending on the type of floor system you are installing, the actions necessary to reduce floor vibration can differ greatly.
Let’s look at the difference between using a floor composed of I-joists, and a TRIFORCE® floor system.
In the case of the I-Joists, it is recommended that you increase the floor’s resistance to deflection with web stiffeners. These are additional OSB or plywood panels that you fasten to the joist’s upper and lower chords via screws and adhesive.
This won’t necessarily cancel out floor vibration, though. It will stop deflection in the immediate area where you applied the web stiffeners. It won’t change the rest of the floor’s behaviour, enabling vibration to spread laterally.
The answer to that problem would be to add blocking to the joists to increase lateral support. However, that won’t necessarily solve your deflection issue.
The point is that both web stiffeners and blocking can be necessary to obtain the desired floor stiffness with an I-joist floor structure.
Open Joist Triforce floors
With TRIFORCE® open joist, your approach will be quite different.
First off, because its design draws on the natural strength that comes from its triangular structure, the product is naturally stiffer.
Its open design also gives the TRIFORCE® open joist another big advantage. it allows you to install a transversal member called a strongback. Its function is to bring transversal rigidity to your floor system by “attaching it together”. This is not expensive technology. depending on the size of the Open Joists, these could either be 2 X 6, 2 X 8 or 2 X 10 nominal dimension lumber. And, as opposed to blocking, a strongback can span several Joists and be installed in one go.
Dealing with floor vibration during construction
We’re not saying strongbacks can replace blocking where reinforcement is required. We are only talking about floor vibration here.
Finally, you could be tackling the problem of floor vibration during construction or (unfortunately) after the building is finished. In both cases the TRIFORCE® System makes it much easier to deal with.
Best of all, simply by using TRIFORCE® open joist with added strongbacks, your chances of experiencing unpleasant floor vibration will be greatly reduced from the start.
If you’d like to know more about the TRIFORCE® floor system, download our technical guide or contact us. We’d be glad to show you its advantages.