Vertical Load Bearing Walls do not allow for any vertical deflection. Non-load Bearing Walls can accommodate vertical deflection when the correct products are selected and installed. The required amount of vertical deflection is determined by the design of the supporting structure.
Walls that are required to allow for vertical deflection must have a Deflection Head Track at the top of the wall. The Deflection Head Track is a 50mm deep profile. The studs must be cut 20mm short of the supporting structure, this allows for the structure to deflect downwards up to 20mm without causing damage to the wall below.
The Siniat Deflection Head Track can be simply ‘friction fit’ into the Deflection Head Track just as it would with a Standard Head Track. For most internal walls in the 2400mm to 3600mm height range the stud can simply be friction fit into the Deflection Head Track just as it would with a Standard Head Track.