Welded-Wire fabric lath must be stiffened in which manner(s)?

Welded-Wire fabric lath must be stiffened in which manner(s)?

• A. Continuously
• B. At a maximum of 6 inches intervals
• C. Horizontally
• D. All of the above

Answer: (D)

Welded-wire fabric lath needs to be made into a true, flat backing so plaster can key and cure without cracking. That requires stiffening it in a way that keeps it rigid across the entire surface. Stiffeners are placed so the lath is supported continuously along its length, with supports no more than six inches apart, and the reinforcing members run horizontally to provide cross-bracing. This combination—continuous stiffening, six-inch maximum spacing, and horizontal orientation—ensures the lath forms a stable, uniform base for the plaster.

Welded-wire fabric lath needs to be made into a true, flat backing so plaster can key and cure without cracking. That requires stiffening it in a way that keeps it rigid across the entire surface. Stiffeners are placed so the lath is supported continuously along its length, with supports no more than six inches apart, and the reinforcing members run horizontally to provide cross-bracing. This combination—continuous stiffening, six-inch maximum spacing, and horizontal orientation—ensures the lath forms a stable, uniform base for the plaster.