Wall Tie Detection Survey

Wall tie detection is a critical aspect of structural integrity assessments in masonry buildings. Over time, wall ties can corrode or fail, leading to potential structural issues. At Construction Diagnostics, we employ advanced techniques such as covermeters and borescopes to accurately assess the condition and positioning of wall ties. Our expertise ensures your building remains safe and structurally sound.

What are Wall Ties?

Wall ties are essential components that provide stability to cavity walls by connecting the outer and inner leaf. They are typically made of steel and are embedded in the mortar between the bricks. As they age, wall ties can deteriorate, primarily due to corrosion. This deterioration can compromise the structural integrity of the building.

Why is Wall Tie Detection Important?

Detecting the condition of wall ties is vital for several reasons:

Structural Safety: Damaged wall ties can lead to wall instability, posing risks to occupants.
Preventative Maintenance: Early detection of issues can lead to timely repairs and reduced costs.
Property Value: A thorough assessment of wall ties can enhance the property’s market value and appeal.

Hand using a black covermeter device on a textured wall.

Borescopes

Borescopes are flexible inspection tools that allow for detailed visual assessments inside walls without invasive procedures. Here’s how they work:

Visual Inspection: A borescope equipped with a camera provides clear images of the wall tie condition.
Flexible Probe: The flexible nature of a borescope permits access to confined spaces where wall ties may be located.
Real-Time Imaging: Operators can view live feeds, which aids in making immediate decisions regarding repairs or further assessments.

The combination of covermeter and borescope technology ensures a comprehensive evaluation of wall ties, allowing for effective planning and mitigation strategies.

Close-up of a handheld borescope with a screen showing an inspection camera feed, operated by a hand with a black glove.

Techniques for Wall Tie Detection

Covermeters

Covermeters are non-destructive testing instruments that use electromagnetic fields to locate and assess the depth of wall ties within the masonry. Key advantages include:

Non-Destructive: No need to disturb the wall structure.
Quick Results: Provides instant readings, allowing for swift assessments.
Accurate Locating: Identifies the exact position and general condition of the wall ties.

Using a covermeter, our certified technicians can determine the presence and condition of existing ties efficiently, minimising disruption to your property.

Our Process

At Construction Diagnostics, we follow a systematic approach to wall tie detection:

Initial Assessment: We conduct a preliminary evaluation of the structure to understand its condition and structural concerns.
Covermeter Survey: Using our covermeters, we accurately locate wall ties and assess their depth.
Borescope Inspection: For areas of concern identified during the covermeter survey, we utilise borescopes to visually inspect the condition of the wall ties.
Reporting: We provide detailed reports outlining our findings, the condition of wall ties, and recommended remedial actions.

Contact Us

Effective wall tie detection is essential for maintaining the safety and stability of your property. With over 40 years of experience, Construction Diagnostics employs advanced covermeter and borescope technology to provide you with accurate assessments and peace of mind.

For expert wall tie detection services, contact us today to ensure the longevity and safety of your masonry structures. Click here to find out more about the other material testing services we can offer you and your project