ECN Forum Forums General Topics of the Trade General Discussion Area romex, used on a solid block wall ?

mj,
Are these solid block walls or are they the kind that I am use to,16in with a center web and open cells on both sides of the web,except around openings when they are filled with rebar and concrete?
Down here in the Sunshine state there are a lot of block homes that use open cell blocks that are suitable for running NM in the open vertical cells.This will protect the cable from just below the lentil or header block down to the slab.
For cables behind sheet rock we are required to keep the NM 1.25 inches away from any framing member and that includes the furring.There is a stand off clip that screws into the furring and keeps the wire offset the proper distance.We also have used cut nails and wire ties for this purpose.Plastic boxes are punched into the open cells in the block and secured with furring and cut nails.
Once the rough in is inspected then the cells are filled wth foam for better insulating properties.This will not prevent the home owner from driving a long nail or screw into the cable unless the cable is in the cell.
Chris