Steel framing system (SFS) accessories work in tandem with SFS studs to create robust building envelopes. From connectors to thermal bridging solutions, SFS accessories address various construction challenges.Â
They improve insulation, provide flexible connections and ensure proper load distribution.
What Are the Different SFS Accessories?
SFS accessories include a wide range of components, each serving a specific purpose in steel frame construction.
- Bracing straps: Provide lateral support and improve structural stability
- Brick tie channels: Connect exterior masonry to the steel framing system
- Deflection head brackets: Allow for vertical movement between floors
- SFS screws: Various types for different connections within the SFS system
- Zed bars: Thermal breaks that reduce heat transfer through the building envelope
- Tek screws: Specialised fasteners for metal-to-metal connections in SFS framing
Is a Deflection Head Bracket Recommended Over Other SFS Connections?
Deflection head brackets are valuable in multistorey SFS construction where vertical movement between floors is expected. They're recommended in scenarios with the potential for structural settling and live load deflections.Â
These brackets allow for vertical displacement while maintaining the integrity of non-load-bearing walls, preventing drywall damage. Also, deflection head brackets are ideal for tall interior partitions.Â
They're important in structures with large spans or where significant temperature fluctuations could cause thermal expansion.Â
4 Benefits of Tek Screws for Metal Connections in SFS Framing
- Holding power: Tek screws provide exceptional grip in metal connections, improving structural integrity
- Quick installation: Their self-drilling design eliminates the need for pre-drilling, significantly speeding up the construction process
- Versatility: Tek screws come in various sizes and thread patterns, suitable for different SFS stud gauges and connection types
- Corrosion resistance: Tek screws feature protective coatings, making them ideal for both interior and exterior SFS applications
How Do Zed Bars Contribute to Thermal Performance in SFS Exterior Wall System?
Zed bars boost the thermal performance of SFS exterior wall systems by creating a thermal break. They offer separation between the inner and outer parts of the wall assembly, minimising thermal bridging. This limits heat transfer through conductive materials like steel.Â
Also, zed bars offer a framework for supporting extra insulation outside the main SFS stud layer. It allows builders to adjust insulation thickness to meet varying energy requirements. When properly installed, zed bars contribute to effective moisture management.Â
How Does the Gauge of Brick Tie Channels Affect Their Load-Bearing Capacity?
The gauge of brick tie channels impacts their load-bearing capacity in SFS constructions.
- Thicker gauge = higher capacity: Channels with a lower gauge number (thicker metal) can support greater loads
- Material strength: The gauge affects the channel's resistance to bending and twisting under load
- Wind load resistance: Thicker gauges provide better performance in high-wind areas, important for exterior masonry support
- Span capability: Heavier gauges allow for wider spacing between supports, potentially reducing the number of SFS studs required
- Durability: Thicker channels generally offer improved corrosion resistance and longer service life