Why Do So Many Roof Trusses Collapse? Here Are the Common Causes!

Roof trusses are a crucial element in building structures, serving as supports for the roof covering and protection against extreme weather. However, there are numerous cases of roof truss collapses in various projects, from residential homes, warehouses, to public buildings. These incidents can cause significant losses and even endanger lives.

So, what are the common causes of roof truss collapse?

1. Poor Material Quality
The use of lightweight steel or building materials that do not meet quality standards is one of the main causes. For example, materials that do not comply with SNI standards can have low tensile strength and are susceptible to damage when supporting loads.

2. Structural Planning Errors
Inaccurate calculations regarding wind loads, dead loads, and live loads are often the root cause of problems. Without proper structural planning, load distribution is uneven, ultimately leading to construction failure.

3. Substandard Installation
Even when using quality materials, technical errors during installation, such as weak welding, weak joints, or imprecise component cutting, can be the main cause of roof truss collapse.

4. Lack of Technical Supervision
Projects that are not supervised by experts or experienced foremen are prone to errors in the field. Weak supervision means potential errors may go undetected early.

5. Use of Inappropriate Mixed Components
Sometimes, roof trusses are made by mixing several types of materials without considering their characteristics. For example, combining galvanized trusses with non-standard joints can create an imbalance in structural strength.

6. The Effects of Weather and Corrosion
If the roof truss is not coated with anti-rust materials or uses corrosive plates (for example, unprotected black plate), its weather resistance will decrease drastically over time.

Roof truss collapse is not only a matter of materials, but also involves project planning, execution, and supervision. To avoid this risk, it is important to use SNI-compliant building materials, ensure installation follows procedures, and involve professionals from the start.

Get Quality Roof Truss Materials at PT Intisumber Bajasakti
ISBS provides a variety of roof truss materials, such as galvanized steel, galvanized sheet metal, and lightweight steel, all of which have been quality-tested and ready to be delivered to your project site.

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