tilling on soundbloc and resilient bars - Tile Advice

[Chris1397]

Hi Folks, ive been asked to soundproof a bathroom ie install resilient bars, double board all walls with gyproc soundbloc sandwiched by 4mm acoustic matting (Rubber). it is esential that a 5mm gap is left right around the perimeter of the plasterboard (not touching roof, walls, or floor) this gap is then filled with acoustic sealant. Take 1 of the walls for example, its 2.2m x 2.2m so ill be fitting 4x35kg boards and 1x25kg matting then tiles at approx 100kg!!! total 265KG in weight hanging from resilient bars. Should i be concerned. i have tried to find info on the weight restrictions of these bars without any luck. does anyone have experience of this.
Thanks.

 

[White Room]

You could try and contact the supplier of the resilient bar to find out, as there screwed to one edge it may have a small amount of flexibility.