Archive April 2013

Wall Tie Replacement, London

Newman building solutions are currently undertaking wall tie replacement, London for one of our council clients.

We were called upon to carry out a wall tie survey to 15 properties suffering signs of wall tie failure. The classic signs of horizontal cracking within bed joints highlighted the defects and upon our visual and intrusive wall tie survey we found that the existing ties had corroded causing them to expand and lift the bricks work.

Wall Tie Replacement
Wall Tie Replacement

Wall tie failure is a common defect among houses built in prior to the 1980’s and buildings of all types and constructions suffer from wall tie failure due to the ties being constructed from mild steel or wrought iron and moisture penetration through the pointing of a building reacts with the metal and causes it to rust and expand lifting the masonry. There are other causes of wall tie failure of which we will cover in future blogs.

With this particular project that is underway wall ties are being located using a metal detector and isolated using Twistfix’s unique Clansleeve’s that encompass the failed tie in a sleeve filled with resin that prevents any further corrosion. The sleeve slips onto the tie within the bed joint alleviating the need to remove any bricks.

Wall Tie Replacement
Wall Tie Replacement

The replacement wall tie we are using for this wall tie replacement, London is Twistfix patented 9mm stainless steel patented CD tie which enables us to install the wall ties quickly as only a 7mm pilot hole is required to drive the tie in. Using this tie enables us to complete over an elevation per day and it also becomes load bearing as soon as it is installed removing the need to wait for any setting times for resins or fixings.

If you have signs of wall tie failure or require a wall tie replacement specialist be sure to contact Newman Building Solutions today on 0207 559 1410 or email info@newmanbuildingsolutions.com

Author: Jon Newman
Posted:
Categories: Current Projects, Wall Ties

Structural Repair Survey, London, SE1.

Another of today’s Structural Repair Survey’s carried out to this building in London SE1, the property is suffering from cracked brick work in a number of places, the structural defects identified include bowing and cracked masonry due to a lack of lateral restraint aswell as failed pointing to large areas of the brickwork.

A large number of the bricks have been damaged by freeze thaw cycle and sections of the existing bricks have failed completely falling from the building putting members of the public at risk from severe injury.

Our repair scheme will include bed joint reinforcement using Twistfix helical bars, brick repairs using a high strength repair mortar and brick tinting techniques, large areas of the brick work will also be repointed.

Let us help with your Building and Structural repair needs by contacted us today on 0207 559 1410 or email us info@newmanbuildingsolutions.com

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Crack Repairs To Brickwork

Author: Jon Newman
Posted:
Categories: Bowing Walls, Building and Structural Repairs, Surveys, Victorian Property Information