To get a quality lightweight steel roof truss, several important things need to be considered as follows:
1. Quality of Steel
2. Anti-Rust Coating
3. Thickness of the Anti-Rust Coating
4. Special Software for Mild Steel Structure Design
5. Stiffening System (Bracing)
6. Independent Drilling Screws
7. Initial manufacture
8. Warranty
The Z (Zinc) layer, often called Galvanized and AZ (Aluminum and Zinc), is the most common type of anti-rust coating 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 Zinc (Galvanized) layer is not corroded with mortar but is less resistant to salt water, the Zinc layer is widely used for roof truss with ceramic tile roofs or concrete roof tiles, because the nok / bubung parts are usually filled with mortar (kerpusan).
To achieve a relatively equivalent resistance level, the thickness of the zinc layer used must be thicker than Aluminum zinc. The general standard for structural materials (bearing load), the thickness of Aluminum Zinc coating should not be less than 150 gram / m2, while for the Zinc (Galvanized) layer 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 very difficult to be able to visually determine the thickness of the anti-rust coating. Examination must be carried out through a laboratory examination. So the easiest is to ask for a written guarantee about the thickness of the mild steel layer to be used. Keep in mind that the thickness of the anti-rust coating used is very influential on the age of mild steel.
Lightweight steel roof frame is the development of new technology from the roof structure using steel construction that is strong but lightweight, we know beforehand that the name of steel is identical to its weight and size but over time it appears that mild steel technology. attract many people to use it. The steel used is a type of cold rolled coil (CRC) with a profile hood like the letters C or O. Here are some descriptions of lightweight steel roof truss.
EXCELLENCE OF LIGHTWEIGHT STEEL FRAMES
No need to paint anymore. Lightweight construction material so as not to overload the structure. Not exposed to termites, this is different from wood which has the risk of porous being eaten by termites. The quality of the material does not change, it is not rotten because of old age. The installation process is fast, can be made first and then stay at the project location. Stainless.
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