On the construction of roof truss for stage truss system ,there may come some problems ,today jacky is going to analysis some of them may it can help you when you are going to make a roof truss by yourself .
As we all know Roof Truss can save money, time and the headache of having to figure complex roof angles but like many structural elements, they are not infallible and if you are going to choose to install roof truss ,you have to give a copy blieprints of you stage Truss System.Then he will prefabricate the trusses to fit your specific stage truss system.Roof trusses, disperse the weight of the roof to the house’s load-bearing points. While roof trusses have some big advantages over stick framing, there are also a few common problems.
for example:
Interior Damage
- The first indication you may have that something is awry with your trusses is the appearance of cracks at the edge of the ceiling or a gap between the top of the wall and the ceiling. These problems occur where the ceiling meets an interior wall. Using new or “green” lumber can cause the trusses to move as they dry out. Heat and humidity are also major factors in shifting trusses.
Truss Uplift
- Roof Truss contain supporting boards that extend between the top chord and the bottom chord to sustain the roof load. Unfortunately, wood, being a natural product, will move when subjected to temperature fluctuations and humidity changes. The trusses, designed to span the width of the house, attach only to the load-bearing points, leaving the rest of the truss free to move. As the wood contracts, the center of the bottom chord can lift away from the top of interior walls.
These are some Problems for stage truss system.
RoofTruss 