About this app

To get a quality lightweight steel roof truss, some important things need to be observed as follows:

1. Steel Quality
2. Anti-Rust Coating
3. Thickness of the Anti-Rust Coating
4. Special Software for Light Steel Structure Design
5. Stiffening System (Bracing)
6. Self Drilling Screw
7. Prefabrication
8. Warranty
The Z layer (Zinc) which is often called Galvanized and AZ (Aluminum and Zinc) are the most common types of anti-rust coatings used in Indonesia. Each layer has advantages and disadvantages. The advantages possessed by Aluminum Zinc (AZ) are more corrosion resistant to salt water while the disadvantage is that it is not resistant to mortar or mortar (corrosive). On the other hand, the layer of Zinc (Galvanized) is not corroded by mortar but is less resistant to salt water, Zinc layer is widely used for roof truss with ceramic tile roof or concrete roof tiles, because the nok / bubung section is usually filled with mortar (kerpusan) .
To achieve a relatively equivalent level of resistance, the thickness of the Zinc layer used must be thicker than Aluminum zinc. The general standard for structural materials (bearing loads), the thickness of Aluminum Zinc layer should not be less than 150 gram / m2, while for Zinc (Galvanized) coating not less than 180 gram / m2.
AZ 150 gr / m2 ~ Z 180 gr / m2
(AZ 150 gr / m2 EQUATION WITH Z 180 gr / m2)
Just like the quality of steel material, it is quite difficult to be able to visually determine the thickness of the anti-rust coating. Checking must be done through a laboratory examination. So the easiest is to ask for a written guarantee about the thickness of the light steel layer to be used. Keep in mind that the thickness of the anti-rust coating used is very influential on the life of mild steel.


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