 Re: dry stack block stucco finish experience
Applied type S cement and sand mixture (1:4 ratio) to my block three weeks ago. Jim's experience is spot on. My block was tinder dry, I had a bucket and sponge - switched to the garden hose after the first wall. With the extreme dry conditions we have had as of late I would say my 1/4" skim coat has set up - no cracks.
As this will not be my actual finish (I will be using slate tile, cut to resemble bricks) I'm not too worried about any small cracks. This was just to seal the block in case of rain and from my sprinkler system.
I did attempt to use cement board joint tape on the block joints - failed miserably, would not stick to the block, and I kept pulling it off with the trowel, pulled the remaining strips of tape off, and "bare" skimmed all the block walls. |