I am installing a cultured stone product.
My question is, should I apply the mortar to the entire back surface or apply only to the edges leaving the center dry? By leaving a center void it would create a suction.
Re: Cultured stone
Looks like you never got any replies from your Sept 08 posting. You are probably done with the project so hope it went well. You DO want to apply the mortar across the entire back of the stone, do not leave the center dry. Put the mortar on the back tapering the edges to the center & push the stone on while moving it slightly. Excess mortar will ooze out the sides.