Type SFB metal plaster base is which of the following

Type SFB metal plaster base is which of the following

• A. self-furring with backing
• B. flat rib with backing
• C. self-furring without backing
• D. non-furring

Answer: (A)

The main idea is what SFB describes in metal plaster base. SFB means self-furring with backing. Self-furring means the lath has built‑in ribs that space the plaster away from the substrate, creating an automatic air gap and a mechanical key for the plaster to grab onto. The backing provides a solid plane or backing surface behind the lath, giving the plaster stability and improved adhesion. Together, these features offer both the key for bonding and the backing for support, which is why this option is the best description.

The main idea is what SFB describes in metal plaster base. SFB means self-furring with backing. Self-furring means the lath has built‑in ribs that space the plaster away from the substrate, creating an automatic air gap and a mechanical key for the plaster to grab onto. The backing provides a solid plane or backing surface behind the lath, giving the plaster stability and improved adhesion. Together, these features offer both the key for bonding and the backing for support, which is why this option is the best description.