Lintel repair comprises of two lengths of high tensile Thor Helical bar which are bonded into the bed joints immediately above the opening and extending 500mm either side. A second pair of helical bars are then installed several courses higher. The pair of reinforced layers create the upper and lower flanges of a reinforced brick beam which supports the masonry above and spreads the structural loads.
Lintel failure occurs for a number of reasons and one of the most common is the replacement of load bearing steel and wooden door and window frames with non-load bearing uPVC units.
Where lintels sag, pinning ties can be inserted vertically through the arch and into the reinforced masonry beam. Any cracks that resulted from the failed lintel can be repaired with Thor Helical crack stitching bars and filled with Jahn M40 Injection Grout.