At Newman’s we utilise modern methods of masonry repair to restore bowing walls and lintel failure to name but a few structural defects.
Our specialist services were called upon by a building surveyor managing the refurbishment of a Victorian built 1890’s semi detached house in Croydon, South London.
Bowing Building London
After completing our survey it was discovered that there was extensive outward movement to the front and gable elevations and with the loft conversion in progress the additional stress to the masonry was sure to cause severe movement.
Bed Joint Reinforcement
Over 30 Lateral restraint ties were used on the gable elevation alone into the first floor and the new loft floor to restrain the outward movement combined with bed joint reinforcement ensuring there would be no further outward movement.
Lateral Restraint Ties Installed
With the bed joint reinforcement being installed front the front elevation wrapped around the gable and into the rear elevation the lintel failure was repaired and the bowing restrained.
The pick of today’s Structural Surveys was to this large Manor house in Shepperton. The property is undergoing major repairs to the external fabric and the client had concerns over some suspicious cracks above and below some of the windows, after a close inspection it was found that the property had suffered from Lintel failure to a number of the windows. Our repair scheme will include the installation of deep bed helical masonry beams using the Twistfix system 450mm CD dryfix pinning ties will also be installed along with grout and resin injections to various areas, once all Structural Repairs are complete the brickwork will be repointed using a hydrologic lime mortar. To find out more about our services contact us Today.
At Newman’s we carry out a large volume of wall tie surveys across London and the South coast to properties that have had a wall tie failure of the original wall ties, but ever increasingly we are receiving more and more inquiries for wall tie surveys after new remedial wall ties have been installed, and failed.
There are many different wall ties available on the market to diy’ers and untrained installers who see the installation as simple as drilling a hole, tightening an expander or using a resin or mastic to fix the wall tie.
In principal installation is simple, specification of an appropriate tie is also fairly simple, but to do it correctly and install a lasting permanent solution isn’t if you are not experienced.
for instance here is a tie installed by a ‘reputable’ cavity wall insulation company who decided they would install wall ties to 9 retirement bungalows…..
Failed Wall Tie
The wall tie has smashed the brick in half losing all bearing within the brick and it was found to be fixed with a red flexible caulk type mastic. This is a prime example of remedial wall tie installation carried out by untrained persons who unfortunately have failed to restore the structural integrity.
Wall ties are a vital part of your structure and should only be installed by experienced contractors.
