How Are Masonry Ties Calculated
Masonry ties are calculated by determining the correct cross-sectional area of the wall tie when calculating the U-value of a wall.
Stainless steel ties are commonly used for their corrosion resistance and versatility.
Default values for stainless steel wall ties often overestimate their cross-sectional area, so it is important to use the correct calculations.
The effect of ties on the U-value of a wall is often insignificant and can be omitted according to EN ISO 6946.
Ancon offers a value-engineered wall tie range that provides high performance at a competitive price.
For more information, one can contact Ancon’s Technical Services Team at +44 (0) 114 275 5224 or refer to the provided links.
Did You Know?
1. The use of masonry ties in construction dates back to ancient Roman times, where they were made of bronze or iron to reinforce stone structures.
2. Masonry ties are designed to provide lateral support to masonry walls, preventing them from bulging or collapsing under various loads, such as wind pressure and seismic activity.
3. The calculation for masonry ties involves considering factors such as the height of the wall, its thickness, the type of masonry units used, the mortar strength, and the expected load conditions.
4. In some cases, masonry ties are designed to allow for thermal expansion and contraction, ensuring the durability and stability of the wall throughout temperature variations.
5. While most masonry ties are made of stainless steel due to its resistance to corrosion, there are certain instances where materials such as carbon fiber or high-strength polymers are used as alternative tie systems.
Importance Of Masonry Ties For Cavity Wall Stability
Masonry ties are essential for maintaining the stability of cavity walls. These walls, commonly used in modern construction, consist of two masonry layers with a gap between them. The role of ties is to connect the inner and outer layers, enabling the wall to remain strong and structurally sound. In the absence of adequate ties, the two layers can separate, potentially resulting in collapse or structural harm.
The primary function of masonry ties is to evenly distribute tensile or shear forces between the inner and outer layers of masonry. This prevents the walls from bulging or bowing outward, contributing to a stable and secure structure. To ensure proper performance and compliance with building regulations, precise calculations and correct installation of the ties are necessary.
Advantages Of Stainless Steel Ties
Stainless steel ties are the preferred choice for masonry ties due to their numerous advantages. Firstly, stainless steel is highly corrosion resistant, making it ideal for use in damp and exposed environments. This ensures the long-term durability and longevity of the ties, reducing the need for frequent maintenance or replacement.
Furthermore, stainless steel ties are available in various types and lengths, allowing for versatility and suitability to different wall constructions. The range of options allows engineers and architects to select the most suitable tie for their specific application, ensuring optimal performance and structural stability.
Another benefit of stainless steel ties is their recyclability. As sustainability continues to gain importance in construction, the use of recyclable materials is highly encouraged. Stainless steel ties can be recycled at the end of their lifespan, reducing waste and environmental impact.
- Highly corrosion resistant
- Suitable for damp and exposed environments
- Long-term durability and longevity
- Versatile types and lengths available
- Optimal performance and structural stability
- Recyclable, reducing waste and environmental impact
Stainless steel ties are the ideal choice for masonry ties due to their corrosion resistance, durability, versatility, and recyclability.
Calculating The U-Value Of A Wall Tie
When calculating the U-value, or thermal performance, of a wall, it is essential to consider the correct cross-sectional area of the wall tie. The U-value measures how well a structure or building component restricts heat transfer. It is crucial in determining the energy efficiency of a building and ensuring compliance with building regulations.
One key issue is that default values for stainless steel wall ties often overestimate the cross-sectional area, leading to incorrect U-value calculations. To obtain accurate results, it is necessary to use the correct and specific cross-sectional area of the wall tie. This information can be obtained from manufacturers’ technical data or by consulting with industry experts.
Ancon, a leading manufacturer of stainless steel ties, has value-engineered its wall tie range to provide high performance at a competitive price. Their technical expertise and commitment to innovation enable architects and engineers to achieve accurate U-value calculations and optimize the thermal efficiency of their buildings.
Ancon’s Value-Engineered Wall Tie Range
Ancon’s wall tie range is engineered to meet the demands of modern construction while prioritizing superior performance. The company has invested in extensive research and development to create ties that offer structural stability and energy efficiency.
Ancon’s value-engineered wall ties are carefully designed and manufactured using high-quality stainless steel. The range includes various types and lengths to accommodate different wall constructions and project requirements. By providing a wide selection, Ancon ensures that engineers and architects can find the perfect tie for their specific application, minimizing compromises in performance or aesthetics.
Ancon’s technical expertise and commitment to value engineering enable them to offer high-performance wall ties at a competitive price. This ensures that customers can achieve desired structural stability and thermal efficiency without exceeding their budget constraints.
- Ancon’s wall tie range is designed for modern construction, with a focus on superior performance.
- The ties are made using high-quality stainless steel and come in various types and lengths to accommodate different wall constructions.
- Ancon values both performance and aesthetics, ensuring engineers and architects find the perfect tie for their specific needs.
- The company’s technical expertise and commitment to value engineering allow them to offer high-performance ties at a competitive price.
- Customers can achieve the desired structural stability and thermal efficiency without exceeding their budget constraints.
Considering The Effect Of Ties On The U-Value Of A Wall
The effect of ties on the U-value of a wall is often considered to be insignificant and can be omitted according to EN ISO 6946, a European standard for the calculation of thermal transmittance in buildings. This standard recognizes that the impact of wall ties on the overall thermal performance of a wall can be negligible and, therefore, does not need to be included in U-value calculations.
However, it is crucial to note that this exclusion applies under specific conditions, such as when the ties are made of materials with similar thermal conductivity to the surrounding materials and when the ties are adequately spaced within the cavity. Therefore, it is essential to consult building regulations and industry standards to determine whether the effect of ties must be considered in the U-value calculations for a specific project.
For more information on masonry ties, calculation methods, or Ancon’s value-engineered wall tie range, links are provided within this article. Additionally, one can contact Ancon’s Technical Services Team at +44 (0) 114 275 5224 to get personalized assistance and expert advice.
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Frequently Asked Questions
How many wall ties per 1000 brick?
The number of wall ties required per 1000 brick varies depending on the size of the brick. Generally, there are 54 wall ties needed per 1000 modular brick and 68 wall ties per 1000 oversize brick. These ties are crucial for ensuring stability and strength in the brickwork and are typically nailed into studs as the mason progresses up the wall.
How many ties per m2?
In order to ensure structural stability and support, it is recommended to have two and a half wall ties per square meter of masonry. These ties should be evenly spaced with a maximum horizontal spacing of 900mm and a maximum vertical spacing of 450mm. To maintain proper anchoring, it is advised to set each wall tie at least 50mm into both masonry leaves. The dimensions of cavity wall insulation boards, often limited to a maximum short edge of 450mm, correlate with these guidelines to promote efficient wall tie installation and functionality.
What is the capacity of a masonry tie?
The capacity of a masonry tie refers to the maximum amount of tension and compression it can withstand. In the case of the Masonry Veneer-Tie with a 4” cavity, it has an ultimate capacity of 717 lbs tension and 1,050 lbs compression at its weakest location. These impressive load-bearing capabilities ensure the tie’s reliability and stability when supporting masonry veneer systems, providing assurance for structural integrity and longevity.
What is masonry tie?
Masonry ties are essential components of brick structures, designed to secure and stabilize the bricks by connecting them to the backup wall or structure. These ties are specifically designed to fit in the horizontal mortar joints, providing lateral support and preventing any potential displacement. A notable example is the dovetail masonry anchor, which fits snugly into a dovetail insert, enhancing its effectiveness in fastening and reinforcing the brickwork.
