galvanised wall ties

Understanding Galvanised Wall Ties Importance, Types, and Installation

When it comes to constructing stable and long-lasting buildings, one aspect often overlooked by many is the selection and use of wall ties. Among the various materials used for wall ties, galvanised wall ties have gained significant popularity in construction and renovation projects. This article delves into the importance, types, and installation procedures of galvanised wall ties.

What Are Wall Ties?

Wall ties are essential components used in the building of cavity walls. A cavity wall consists of two separate walls, separated by a space, which aids in insulation, damp prevention, and structural integrity. Wall ties serve as the connectors that bond the outer wall to the inner wall, providing stability and ensuring that the walls work as a single unit. They help to prevent bowing, bulging, and cracking, which can significantly affect the building’s structural integrity.

The Importance of Galvanised Wall Ties

Galvanised wall ties are made from steel that has been coated with a layer of zinc, which helps to prevent rust and corrosion. This makes them particularly beneficial for use in construction as they extend the lifespan of the ties, ensuring that they maintain strength and functionality over time. By using galvanised wall ties, builders can expect increased durability and reduced maintenance costs, as these ties are much less likely to fail or require replacement compared to untreated alternatives.

Moreover, galvanised wall ties are especially beneficial in areas with high moisture levels, where corrosion can pose a significant problem. The coating provides a protective barrier, allowing the ties to withstand harsh weather conditions, making them suitable for both residential and commercial buildings.

Types of Galvanised Wall Ties

1. H-shaped ties These are often used in situations where the depth of the cavity is larger. The tie has a distinctive H shape, providing extra holding strength and stability.

2. Flat ties Ideal for cavity walls with smaller gaps, these ties are simpler in design and provide substantial strength while occupying minimal space.

3. Dowel ties These are often used in conjunction with brickwork that requires additional stability. They can be easily installed and provide a firm anchor for both the inner and outer walls.

4. Restraint ties Used for securing walls to a frame or other structural supports, restraint ties help in maintaining the overall stability of the building structure.

Installing Galvanised Wall Ties

Proper installation of galvanised wall ties is crucial for optimal performance. Here is a general guide to the installation process

1. Preparation Before installation, ensure that the materials are ready and that the cavity wall is clean and free of debris.

2. Placement The wall ties should be placed at regular intervals according to building codes or guidelines, typically every 600mm vertically and 900mm horizontally.

3. Orientation The ties should be oriented properly—angled or horizontal, depending on the design of the wall and the requirements of the structure.

4. Fixation Secure the ties into the inner wall using appropriate fixing methods, whether it’s by embedding them in mortar or using screws. It’s essential to ensure that the ties are firmly anchored to withstand future stresses.

5. Final Inspection Once installed, conducting an inspection to ensure that all ties are properly positioned and secured is critical before proceeding with further construction.

Conclusion

Galvanised wall ties play a vital role in the structural integrity of cavity walls, providing essential support and stability. Their resistance to rust and corrosion makes them an ideal choice for various building projects, especially in environments susceptible to moisture. By understanding the various types and installation techniques of galvanised wall ties, builders can enhance the safety, durability, and longevity of their constructions, ultimately leading to more robust and reliable structures.