 |
A prism of cracked brickwork at an external corner resulting from support angles being stopped short of the corner. |
 |
Horizontal cracking (0.5-1mm) had occurred along the base of the gable and a dispute arose between landlord and tenant as to the cause. Concern had been expressed by the tenant that the cracking was symptomatic of a lack of wall ties to the gable, but investigations revealed that while the positioning of ties was not strictly in accordance with BS 5628 they were sufficient in number not to be of concern. |
 |
A broken flank wall, caused by overloading adjacent to the front door. The narrowness of the pier at the side of the door opening has concentrated part of the downward loading from the front elevation at this weak point. There may also be indications of lateral movement in the wall above, which have contributed to the problem. |
 |
The stepped cracks in the gable wall of this bungalow, and indications of cracking below the window, suggest possible downward movement at the right hand corner of this elevation. The return elevation and interior should be checked for any corresponding evidence to support this proposition. An alternative solution might be that these are calcium silicate bricks, which have a characteristic pale appearance and are prone to shrinkage following construction, resulting in cracking. Shrinkage cracks are usually of even thickness throughout. Movement cracks typically taper in thickness along their length. Close examination will determine which applies. |
 |
Severe cracking to face brickwork of a solid wall. As is often the case, it is focused on a point of weakness in the structure - in this instance a window opening. Unsurprisingly the property suffered from serious rainwater penetration and draughts. A crack gauge has been fixed across the crack so the direction and amount of any ongoing movement can be monitored. |
