Preparing for Wall Tie Replacement
Assessment and Inspection
The replacement process begins with a comprehensive inspection of your property. Professional surveyors conduct detailed visual examinations to identify visible signs of damage or deterioration. Using specialized equipment such as metal detectors, they locate existing wall ties and assess their condition. In some cases, small sections of brickwork may need removal for direct assessment. Advanced techniques like endoscope surveys or thermal imaging provide additional insights into the wall's condition and tie placement.
Determining the Type of Wall Ties Needed
Selecting appropriate replacement ties requires careful consideration of several factors. The cavity width, existing masonry condition, and type of brickwork or stonework all influence the choice of replacement ties. Helical ties offer versatility for most applications, requiring specialized tools for installation. Mechanical expander ties provide excellent solutions for softer masonry, while resin-fix ties prove invaluable when dealing with unstable or crumbling masonry conditions.
Step-by-Step Wall Tie Replacement Guide
Step 1: Identifying and Marking Tie Positions
The process begins with the careful location of existing wall ties using metal detection equipment. Engineers mark these positions clearly and plan the new tie layout, ensuring a staggered pattern that provides optimal structural support. This systematic approach ensures comprehensive coverage and structural integrity.
Step 2: Drilling Pilot Holes
Precise drilling techniques ensure proper tie installation. The process requires specific masonry bits matched to the building material, with holes drilled slightly deeper than the tie length. Thorough cleaning of each hole ensures proper tie fitting and adhesion.
Step 3: Installing New Wall Ties
Installation methods vary based on the chosen tie type. Helical ties require specific setting tools and careful insertion techniques. Mechanical expander ties need precise tightening to ensure proper expansion and grip. Resin-fix ties demand thorough hole preparation and careful resin application for optimal bonding.
Step 4: Patching the Holes
The final installation step involves careful mortar matching and application. Professional installers mix mortar to match existing colours and textures, ensuring aesthetic consistency. Proper curing time allows for full integration with the existing mortar.
Wall Tie Spacing and Installation Patterns
Effective wall tie replacement follows specific spacing requirements for structural integrity. The standard density requires careful distribution across the wall surface, with increased concentration around openings and edges. This systematic approach ensures proper load distribution and wall stability.
Post-Replacement Inspection
Following installation, a thorough inspection confirms proper tie placement and finishing. Engineers verify correct tie installation depths and mortar matching. Comprehensive documentation records all aspects of the replacement work, including tie types and locations, providing valuable references for future maintenance.
Contact our professional team in Bristol, Swansea, Cardiff and the rest of South Wales for expert wall tie replacement services. Simply call us on 01639 790426 adn we'll be happy to help.
