The oldest Altamonte Springs ranches: plaster on block with no gap behind it
The oldest ranches in Altamonte Springs skip the furring. Their block walls were finished with plaster on block, a hard skim applied directly to the masonry, so there is no gap and no cavity, only paint, plaster and concrete block. Tap it and it sounds solid everywhere. That makes the anchor easy to choose and the drilling easy to botch. Your installer starts each 3/16-inch hole with the hammer off, so the vibration does not lift the plaster skin around the bit, and only turns the hammer on once the bit is into block. Each hole gets vacuumed, then a 1/4-inch Tapcon goes in snug. A 65-inch panel needs four. A full-motion arm does well here, since the load sits on masonry with nothing to flex. It is still masonry, so the +$99 surcharge applies. Nothing can be fished inside the wall, which makes a $79 raceway, painted to match, the way to hide the cords. Old plaster can hide a filled-in window or a patched opening, so the test hole comes before the bracket layout. Figure 70-90 minutes for one of these Altamonte Springs walls.