Cracks Between Internal & External Walls
Cracking where the party wall or partition wall meets external walls is a common problem caused by a lack of connection between the two walls.
Often the connection between the two walls is just a cement fillet which provides no connection or protection against outward movement.
In order to tie the two walls together we utilise the twistfix bed joint reinforcement by chasing out the external bed joints, drilling into the partition wall and chasing into the internal partition wall providing an L shaped tie resisting any further movement. The cement fillet is raked out to a depth of 80mm and injected with twistfix cementitous grout providing a permanent solution guaranteed against failure for 10 years.