No. structural light steel framing members are coated with enhanced zinc and aluminum coating. Which protects the steel from corrosion.
Yes. Pictures can be hung from the drywell and heavier objects can be hung with self-tapping screws directly to the steel stud. Fasteners are available at any hardware store.
No. waves pass through the space between the studs, as with conventionally built homes.
No. a steel framed building or home is 100% compatible with all standard building finishes. We will finish your home with exact interior and exterior finishes you would use for a traditionally constructed home/building.
Yes. Steel provides a safe path for lightning to travel directly to the ground with less resistance that can cause damage or a fire. Therefore, steel offers more protection than a conventional building.
Cold formed Steel shapes can be used for roof systems, floor systems, wall systems, roof panels, decks, or entire buildings. They can also be used as individual framing members such as studs, joists, headers and truss members. Cold formed steel members can also serve as both primary structures and secondary structures. An example of the Cold Formed Steel used as primary structure is the LSF Studio webbed trusses. Steel studs can also act as secondary structures by providing lateral support to exterior wall finish since they rely on the primary structure for support.
There are many differences between cold framed steel and hot rolled steel:
Cold-formed steel (CFS) is typically limited to light thickness (up to 3.00 mm) while hot rolled steel can be manufactured to any desired thickness.
CFS shapes are different than hot rolled shapes and endless geometrical shapes can be produces.
CFS is manufactured at room temperature while hot rolled steel is made at elevated temperatures.
CFS lightweight makes it easier and more economical to mass-produce, transport and install.
Several 8 storey building has been constructed in the USA and Europe using cold formed steel framing. The first 8 story building in the USA built with steel framing was completed in 1999 in Seattle, Washington (a high seismic area). Mid rise building (5 or 6 levels) in cold formed steel are also very common and many have been build around the world in the past 20 years or so. From an engineering point of view, there is no limit on the number of storeys that can be built with cold-formed steel framing.
One of the biggest advantages of cold-formed steel is its high strength to weight ratio. This allows manufacturers and framers to fabricate long trusses with clear spans up to 26 meters. Steel trusses can be easily designed with clear spans up to 14 meters. Beyond that, a thicker material or boxed profile would be required along with specially designed connections. (Note: In many areas, there are transportation limitations when truss span exceeds 15 meters). For long trusses, intermediate bearing supports can also be used to reduce the size and thickness of the truss members.
Cold-formed steel is much lighter than concrete. It weights approximately 5 psf (0.24kPa) while concrete ranges from 30 to 70 psf (1.45 to 3.35 kPa). In most cases, using cold formed steel means that amount of concrete used in the foundations can be reduced. Your structure or foundation engineer should be made aware of loads acting on the concrete so that the foundations can be designed accordingly.