Movement joint & debonded sleeves

[lstevensuk]

My bricky is just about to start on the external walls and has questioned the need for the hydrocell board (is this movment joint?) and the debonded sleeves. He feels they both did the same thing and to only use the debonded sleeves. Any pointers?

 

 

[markc]

The board is for an expansion joint and the sleeves ensure the wall does not move out of alignment (or fall over in extreme cases) so yes you need both

[lstevensuk]

Thanks @markc, we used both