flagstone installing................

by Joel
(Bartlett,Tn.38134)

Dear Sir;

I am putting on a knee wall with flagstone. I watched your video and I am applying the stone on a OBS board covered with black roofing felt. The video says to apply a metal lathe ( some metal screen to use with wire to secure stone).

Could you tell me what that metal screen is called and how is it bought?

Thanks......Joel