The paper protects the sheathing and interior of the wall from outside moisture intrusion without trapping moisture vapor in the wall. This permits the Portland cement to penetrate lath openings and surround the metal strands, embedding them. As the scratch coat plaster hardens, the lath and plaster become rigidly interlocked with the lath, essentially performing as reinforcement. Encasement of the metal also protects the metal lath against corrosion. A variety of accessories are also available for use in different plaster installations.
Flashing redirects moisture to building exteriors.
Foundation weep screeds serve as a plaster stop and directs moisture to wall exterior. The availability of different types of metal lath and accessories increases the versatility of Portland cement plaster and contributes to its serviceability in many applications. The result will be an attractive stucco finish having the toughness and durability of concrete. For unlimited design possibilities in a tough, durable, and beautiful exterior cladding, use traditional Portland cement plaster. PCA disclaims any and all responsibility for the firms listed, products they supply, work performed by them or performance of their products.