Simpson Strong Tie Type 4 Wall Ties are essential components used in modern cavity wall construction to securely connect the inner and outer leaves of masonry walls. These ties ensure structural stability by transferring loads and providing lateral support between wall leaves, preventing separation and improving overall wall strength.

Type 4 Wall Ties are designed specifically for light-duty applications in residential buildings, particularly suitable for box-form dwellings with a maximum height of up to 10 metres. They are appropriate where the leaves of the cavity walls are of similar thickness, including internal separating cavity walls.

Available Sizes and Packaging Details

Each box contains a suitable quantity of wall ties for convenient onsite use, packaged for protection and easy storage.

Key Features

• Light-Duty Design:
  Suitable for residential box-form buildings up to 10 metres tall, providing adequate support in typical low to moderate load situations.
• Compatibility:
  Intended for use in cavity walls where the inner and outer leaves have similar thicknesses, including internal separating walls within properties.
• Wind and Altitude Specifications:
  Recommended for use on flat sites in towns and cities where the basic wind speed does not exceed 25 metres per second (m/s) and altitude is less than 150 metres above sea level.
• Durability and Compliance:
  Manufactured to meet industry standards for corrosion resistance and structural integrity, ensuring long-term performance within cavity wall assemblies.

Applications

• Residential Construction:
  Ideal for new build homes and housing developments featuring cavity walls with similar leaf thickness.
• Internal Separating Walls:
  Suitable for use in internal cavity walls separating different parts of a property or adjoining properties.
• Low-Rise Buildings:
  Appropriate for buildings up to 10 metres in height, common in suburban and urban residential zones.
• Controlled Environmental Conditions:
  Best used in locations with moderate wind loads and low altitude to ensure structural compliance and safety.

Technical Specifications Summary

• Material: High-quality, corrosion-resistant steel or galvanized finish (confirm specifics with manufacturer for exact corrosion protection).
• Length Options: 200 mm, 225 mm, 250 mm to suit various cavity widths.
• Load Rating: Light duty, suitable for box-form dwellings up to 10 metres high.
• Environmental Suitability: Designed for flat sites, wind speeds 25 m/s, altitude 150 m.

Installation Guidance

• Position wall ties horizontally between inner and outer leaves at recommended spacing per building regulations or engineers specification.
• Ensure correct embedment depth into mortar joints for maximum load transfer.
• Avoid bending or damaging wall ties during installation to maintain structural integrity.
• Follow local building codes and standards for wall tie spacing and positioning to ensure compliance.

Frequently Asked Questions (FAQ)

Q1: What types of buildings are Type 4 Wall Ties suitable for?
A1: Type 4 Wall Ties are best suited for light-duty applications in box-form residential dwellings up to 10 metres high with cavity walls where the inner and outer leaves are of similar thickness.

Q2: Can these wall ties be used in high wind areas?
A2: They are recommended for sites where the basic wind speed does not exceed 25 metres per second and the altitude is no more than 150 metres above sea level. For higher wind speeds or altitudes, stronger or different specification wall ties should be used.

Q3: What sizes are available and how do I choose?
A3: Available sizes include 200mm, 225mm, and 250mm lengths to suit different cavity widths. The size should match the thickness of the cavity leaves and the cavity gap to ensure proper embedment and structural performance.

Q4: Are these wall ties corrosion-resistant?
A4: Yes, Simpson Strong Tie products typically feature corrosion-resistant finishes such as galvanization, designed to provide long-term durability within cavity walls exposed to moisture.

Q5: How should wall ties be installed?
A5: Wall ties should be embedded horizontally in mortar joints between the inner and outer leaves, following spacing guidelines in relevant building codes. Care should be taken to avoid bending or damage.

Summary

Simpson Strong Tie Type 4 Wall Ties offer a reliable, tested solution for securing cavity walls in low-rise residential construction. Their design meets the structural and environmental requirements for typical housing developments, making them a trusted choice for builders and contractors seeking light-duty wall tie solutions.