Hi,
We have an extension built 2 years ago, one side is block and sand/cement render. This side now has a deep crack from the top parapet wall down that is very concerning.
On inspection of the largest section of the crack and removing by hand that bit. It is wet but the crack does not continue behind the bit I have taken off. But that exposed bit, the scratch coat is still wet and bouncy, which if I remove would probably expose the block.
Apart from the render having been done poorly any suggestions on the root cause of the cracking and the remedy this? There are other sections on the wall where the paint is bubbling off, looks like wetness behind those sections too.
The last 2 images are when I lift the stone ( which I shouldn't be able too), looks like only a cavity tray above the insulation gap, no other DPM before the mortar bed and stone
We have an extension built 2 years ago, one side is block and sand/cement render. This side now has a deep crack from the top parapet wall down that is very concerning.
On inspection of the largest section of the crack and removing by hand that bit. It is wet but the crack does not continue behind the bit I have taken off. But that exposed bit, the scratch coat is still wet and bouncy, which if I remove would probably expose the block.
Apart from the render having been done poorly any suggestions on the root cause of the cracking and the remedy this? There are other sections on the wall where the paint is bubbling off, looks like wetness behind those sections too.
The last 2 images are when I lift the stone ( which I shouldn't be able too), looks like only a cavity tray above the insulation gap, no other DPM before the mortar bed and stone
