Metal lathe is a sheet of diamond-patterned metal mesh that is used to hold stucco or mortar onto a wall. Self-furring metal lathe is attached to concrete bricks walls that are going to have stucco or veneer stone installed on them. Self-furring metal lathe has a pattern of concave dents called dimples in its mesh. The dimples create the necessary 1/4-inch furring or space between the wall and the lathe, which allows the stucco to grip onto the lathe when you apply it.
- Skill level:
Things you need
- 1 1/4-inch masonry bit
- Measuring tape
- Safety goggles
- Self-furring metal lathe
- 1 1/4-inch masonry nails with washers/concrete stub nails, 3/4-inch long, 3/8-inch diameter heads
- Power/powder actuated lathe fasteners
Divide the total square feet of the concrete brick wall that you are going to install the metal lathe onto by 16 to figure out the number of pieces of metal lathe that you need for your project.
Pre-drill 1-inch deep holes into the masonry joints, or the grout between the concrete blocks, every 12 inches along the wall with a hammer-drill with a 1 1/4-inch masonry bit attached.
Hold the lathe, shiny side down against the wall, which will allow the lathe to create the furring space that is needed for the stucco or plaster application. This creates little hollows in the lathe that will cleat into the stucco and hold it up, preventing cracking after the stucco dries. Start attaching the self-furring metal lathe to the wall by nailing 1 1/4-inch masonry nails and washers with a hammer into the holes you drilled at the masonry joints.
Overlap the ends of the lathe with each other by 1/2 an inch at the sides (top and bottom) and 1 inch at its ends (left and right). Attach the lathe together at these overlapping points with six fasteners, one at each corner of the lathe and one along the midpoint of each long-edged side. Attach the lathe with stub nails along the long sides and at the midpoint or 9.5 inches in at the centre of the lathe. Intersperse the nails in even rows that are equally distant.
Tips and warnings
- Wear safety goggles while drilling holes in the concrete brick to protect your eyes.
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