What is a steel deck roof?
Application of steel deck
The main application of the steel deck is the implementation of the roof of buildings with metal and concrete frames. Some people think that the steel deck can only be used to construct the roof of industrial buildings. While it is easy to use the steel deck in residential, office, commercial, etc. buildings. In general, the use of the steel deck roof is as follows:
1. In metal and concrete frame structures with office and residential buildings
2. In metal and concrete frame structures with commercial and industrial use
3. In metal and concrete frame structures with warehouses and sheds
4. In the structure metal and concrete skeletons with the use of gymnasiums, sanatoriums, schools and cinemas
5. creating work platforms for workers during the construction of multi-story buildings
6. creating light cement slabs on the floors of buildings
Advantages of steel deck roof
✅ Eliminating the stage of molding and piling and increasing the execution speed: The MCD or CDS roof system is known as a self-supporting formwork. These roofs, with the possibility of easy cutting and quick arrangement of formed galvanized sheets, increase the speed of productivity in the stage of construction. creates a roof between the structural elements of the slab; Therefore, in this system, the rigidity of the roof against the lateral forces of the earthquake will increase significantly compared to other roofs, and the distribution of the earthquake forces between the resistant elements of the lateral load-bearing is done correctly.
✅ Reduction of collateral and financial damage during an earthquake and fire: One of the damages that occurs during an earthquake is the fall of non-structural components (roofing blocks and tiles) that occur in the composite roof of a steel deck like this. There are no damages. Also, in structures that use plasto foam materials, there is a significant increase in the number of deaths (poisoning and suffocation) during a fire due to gas formation.
✅ Creating a reliable work platform during execution: The placement of the steel deck roof system creates a permanent work platform and minimizes the risks during execution.
✅ Integrity of the roof and preservation of concrete sap: In the steel deck roof, the roof surface is implemented in an integrated manner, and due to the function of the roof mold (permanent mold), the concrete sap is preserved as much as possible in the roof. And the concrete strength of the steel deck roof increases greatly.
Types of steel deck roofs
✅ Normal steel deck
Normal steel deck is used to create flat or sloping roofs with a low slope. The normal steel deck is divided into several different categories, which are:
• Steel deck type A (metal sheets with narrow teeth)
• Steel deck type B (metal sheets with wide teeth)
• Steel deck type F (metal sheets with regular teeth)
• N-type steel deck (metal sheets with deep and wide teeth)
✅ composite steel deck
In the design of composite steel deck, more ridges and depressions are created. This approach creates an integrated structure in concrete slab and steel deck. The composite steel deck is divided into two categories, which are:
• SB steel deck
• SBR steel deck (the design of the teeth is the reverse of the SB deck)
✅ Molded steel deck
The implementation of molded steel deck is much easier compared to the other two categories due to its special design. There is no need to use a wooden form to implement this type of deck. Types of molded steel decks are divided into three categories, which are:
• S3 steel deck
• TF 75 deck
• TF 150 steel deck