Installing artificial stack rock.
I have recently completed the construction of a wrap deck. It is supported with 14 concrete block columns ranging from about 6 to 10 feet tall. I am in the process of installing artificial stack rock on the columns. This is taking much longer than I anticipated, largely due to working with the mortar and trying to keep the stones clean as I work. After 7 days, I have completed 1 and 1/2 of the tallest columns. I just heard from a friend to use liquid nails instead of mortar. Do you recommend this? If so, should I spread a layer of mortar against the block, let that dry and then use the liquid nails? My thought on this is that you would not see block or the seams in the back ground of the rock. Also, would this be much more costly than the cement. I'm using type "N" cement. Thank you in advance for your suggestions. Steven Mains, Talladega, AL